309 products in Books

Join the technological revolution that’s taking the financial world by storm. Mastering Bitcoin is your guide through the seemingly complex world of bitcoin, providing the knowledge you need to participate in the internet of money. Whether you’re building the next killer app, investing in a startup, or simply curious about the technology, this revised and expanded second edition provides essential detail to get you started. Bitcoin, the first successful decentralized digital currency, is still in its early stages and yet it’s already spawned a multi-billion-dollar global economy open to anyone with the knowledge and passion to participate. Mastering Bitcoin provides the knowledge. You simply supply the passion. The second edition includes: * A broad introduction of bitcoin and its underlying blockchain—ideal for non-technical users, investors, and business executives * An explanation of the technical foundations of bitcoin and cryptographic currencies for developers, engineers, and software and systems architects * Details of the bitcoin decentralized network, peer-to-peer architecture, transaction lifecycle, and security principles * New developments such as Segregated Witness, Payment Channels, and Lightning Network * A deep dive into blockchain applications, including how to combine the building blocks offered by this platform into higher-level applications * User stories, analogies, examples, and code snippets illustrating key technical concepts

La historia real de un psiquiatra, su joven paciente y la terapia de regresión que cambió sus vidas para siempre. Un punto de encuentro entre ciencia y metafísica. El doctor Brian Weiss, jefe de psiquiatría del hospital Mount Sinai de Miami, relata en éste, su primer libro, una asombrosa experiencia que cambió por completo su propia vida y su visión de la psicoterapia. Una de sus pacientes, Catherine, recordó bajo hipnosis varias de sus vidas pasadas y pudo encontrar en ellas el origen de muchos de los traumas que sufría. Catherine se curó, pero ocurrió algo todavía más importante: logró ponerse en contacto con los Maestros, espíritus superiores que habitan los estados entre dos vidas. Ellos le comunicaron importantes mensajes de sabiduría y de conocimiento. Este relato, profundamente conmovedor, punto de encuentro entre ciencia y metafísica, constituyó un extraordinario best seller y sigue siendo de obligada lectura en un mundo convulsionado, en especial para los que buscan un sentido espiritual. Los mejores comentarios de los lectores sobre Muchas vidas, muchos maestros: «Impactante. Un libro que te obliga a realizar pausas de vez en cuando para asimilar y procesar las experiencias que relata. Tiene la credibilidad de una eminencia en psiquiatría y se asemeja en ocasiones al Libro Tibetano de los muertos pero bajo mi opinión hay aceptar esta información y cogerlo con pinzas ya que ningún hombre a lo largo de la humanidad murióy volvió para contarnos lo que hay en el más allá.» «Interesante lectura incluso para escépticos. He disfrutado su lectura, a pesar de ser muy escéptico sobre estas cuestiones. Habituado a lectura científica, sentía una sana curiosidad por este libro. Quería descubrir si se trataba de una farsa o tenía visos de seriedad y, tras su lectura, no puedo sino recomendarlo. Se puede creer o no lo que en él se describe, eso es cuestión de cada uno, pero sin duda merece la pena su conocimiento.» «Un libro increíblemente interesante. Libro muy fácil de leer y de tremendo impacto. Las cosas que hablan y los temas que abordan deberían ser aprendidos en el colegio. Todo ser humano debería leer este libro y respetar las teorías que mencionan en el. Brian Weiss es sin lugar a dudas un psiquiatra de prestigio que se atreve a abordar temas muy estigmatizados en nuestra época y sociedad actual.»

This book is an introduction to privacy in the digital age. There are cracks it today's surveillance systems that can be learnt by privacy-conscious people. This book aims to teach you about some of the highest impact things you can do to begin your privacy journey. It’s important to understand that each layer of privacy you add isn’t bulletproof, but we’ll show you how to layer solutions, to give yourself the best possible chance to maintain your privacy in the digital age. This isn’t a computer science book. We’re not going to dive into the nitty gritty complexities of how computers work. But we are going to give you enough information that you can make more informed decisions in your life. This book is not to persuade you to stop using certain products and services, it’s to make you aware of how these products and services might be harming you, so that you can make your own decision about what’s best for your life. This way we can be more empowered human beings. Empower yourself. Reclaim your privacy in the digital age.

A groundbreaking look at the NSA surveillance scandal, from the reporter who broke the story, Glenn Greenwald, star of Citizenfour, the Academy Award-winning documentary on Edward Snowden In May 2013, Glenn Greenwald set out for Hong Kong to meet an anonymous source who claimed to have astonishing evidence of pervasive government spying and insisted on communicating only through heavily encrypted channels. That source turned out to be the 29-year-old NSA contractor and whistleblower Edward Snowden, and his revelations about the agency's widespread, systemic overreach proved to be some of the most explosive and consequential news in recent history, triggering a fierce debate over national security and information privacy. As the arguments rage on and the government considers various proposals for reform, it is clear that we have yet to see the full impact of Snowden's disclosures. Now for the first time, Greenwald fits all the pieces together, recounting his high-intensity ten-day trip to Hong Kong, examining the broader implications of the surveillance detailed in his reporting for The Guardian, and revealing fresh information on the NSA's unprecedented abuse of power with never-before-seen documents entrusted to him by Snowden himself. Going beyond NSA specifics, Greenwald also takes on the establishment media, excoriating their habitual avoidance of adversarial reporting on the government and their failure to serve the interests of the people. Finally, he asks what it means both for individuals and for a nation's political health when a government pries so invasively into the private lives of its citizens―and considers what safeguards and forms of oversight are necessary to protect democracy in the digital age. Coming at a landmark moment in American history, No Place to Hide is a fearless, incisive, and essential contribution to our understanding of the U.S. surveillance state.

Written in the same year that he testified before the Currency Commission in Austria-Hungary, and published in English in 1892, Carl Menger explains that it is not government edicts that create money but instead the marketplace. Individuals decide what the most marketable good is for use as a medium of exchange. “Man himself is the beginning and the end of every economy,” Menger wrote, and so it is with deciding what is to be traded as money."Money has not been generated by law. In its origin it is a social, and not a state institution. Sanction by the authority of the state is a notion alien to it. "This is the first time this essay has been in print in more than a century!Introduction by Doug French

Hard-Boiled Egg Index is a true story on the struggles Kudzai Gumunyu and most Zimbabweans went through during the record- and heart-breaking hyper-inflationary period in Zimbabwe. Though saddening, the story is told in a humorous and vivid way detailing how Kudzai had to adjust to the effects of economic meltdown. Zimbabwe's inflation rate reached a mind-boggling 89.7 sextillion percent by 2008 and US$1 was worth 3 nonillion Zimbabwean dollars had the Central Bank not debased the currency three times with twenty-five zeros. The ZWD100 trillion became the highest denomination on the planet. Before the crazily denominated notes, money was being carried in wheelbarrows and grain bags and the purchased item in your hand due to rapid loss of value. Every day became a struggle from shortages of foodstuffs, collapse of services, bank queues, as well a salary that could not keep up with inflation. The writer also gives the life and economic lessons learned, which can be useful to other countries navigating similar economic minefields. It ends with a positive outlook for the country and the hope that the Jewel of Africa (Zimbabwe) will sparkle again given its educated and competent human capital, abundant and rich mineral fields, tourist attractions, rich agricultural lands aided by a favorable climate, as well as, recently, a change of leadership.

This classic text is annotated to update Graham's timeless wisdom for today's market conditions... The greatest investment advisor of the twentieth century, Benjamin Graham, taught and inspired people worldwide. Graham's philosophy of "value investing" -- which shields investors from substantial error and teaches them to develop long-term strategies -- has made The Intelligent Investor the stock market bible ever since its original publication in 1949. Over the years, market developments have proven the wisdom of Graham's strategies. While preserving the integrity of Graham's original text, this revised edition includes updated commentary by noted financial journalist Jason Zweig, whose perspective incorporates the realities of today's market, draws parallels between Graham's examples and today's financial headlines, and gives readers a more thorough understanding of how to apply Graham's principles. Vital and indispensable, this HarperBusiness Essentials edition of The Intelligent Investor is the most important book you will ever read on how to reach your financial goals.

Ethereum represents the gateway to a worldwide, decentralized computing paradigm. This platform enables you to run decentralized applications (DApps) and smart contracts that have no central points of failure or control, integrate with a payment network, and operate on an open blockchain. With this practical guide, Andreas M. Antonopoulos and Gavin Wood provide everything you need to know about building smart contracts and DApps on Ethereum and other virtual-machine blockchains. Discover why IBM, Microsoft, NASDAQ, and hundreds of other organizations are experimenting with Ethereum. This essential guide shows you how to develop the skills necessary to be an innovator in this growing and exciting new industry. * Run an Ethereum client, create and transmit basic transactions, and program smart contracts * Learn the essentials of public key cryptography, hashes, and digital signatures * Understand how "wallets" hold digital keys that control funds and smart contracts * Interact with Ethereum clients programmatically using JavaScript libraries and Remote Procedure Call interfaces * Learn security best practices, design patterns, and anti-patterns with real-world examples * Create tokens that represent assets, shares, votes, or access control rights * Build decentralized applications using multiple peer-to-peer (P2P) components

The new book from one of TIME's 2021 most influential people Author was in Forbes 30 Under 30 Hall of Fame "A crucial contribution to development of a new technology that will impact all of our lives.” –Laura Shin, host of the Unchained podcast and author of The Cryptopians: Idealism, Greed, Lies, and the Making of the First Big Cryptocurrency Craze “Vitalik Buterin is one of the most influential creators of our generation....Like most of his work, it is sure to become a must-read.”–Camila Russo, author of The Infinite Machine, founder of The Defiant The ideas behind Ethereum in the words of its founder, describing a radical vision for more than a digital currency—reinventing organizations, economics, and democracy itself in the age of the internet. When he was only nineteen years old, in late 2013, Vitalik Buterin published a visionary paper outlining the ideas behind what would become Ethereum. He proposed to take what Bitcoin did for currency—replace government and corporate power with power shared among users—and apply it to everyday apps, organizations, and society as a whole. Now, less than a decade later, Ethereum is the second-most-valuable cryptocurrency and serves as the foundation for the weird new world of NFT artworks, virtual real estate in the metaverse, and decentralized autonomous organizations. The essays in Proof of Stake have guided Ethereum’s community of radicals and builders. Here for the first time they are collected from across the internet for new readers. They reveal Buterin as a lively, creative thinker, relentlessly curious and adventuresome in exploring the consequences of his invention. His writing stands in contrast to the hype that so often accompanies crypto in the public imagination. He presents it instead as a fascinating set of social, economic, and political possibilities, opening a window into a conversation that far more of us could be having. Media scholar Nathan Schneiderprovides introductions and notes.

The classic history of the political and economic devastation wrought by runaway inflation in Weimar Germany—“brilliant” (Guardian)   In 1923, with its currency effectively worthless (the exchange rate in December of that year was one dollar to 4,200,000,000,000 marks), the German republic was all but reduced to a barter economy. Expensive cigars, artworks, and jewels were routinely exchanged for staples such as bread; a cinema ticket could be bought for a lump of coal; and a bottle of paraffin for a silk shirt. People watched helplessly as their life savings disappeared and their loved ones starved. Germany's finances descended into chaos, with severe social unrest in its wake.   Money may no longer be physically printed and distributed in the voluminous quantities of 1923. However, "quantitative easing," that modern euphemism for surreptitious deficit financing in an electronic era, can no less become an assault on monetary discipline. Whatever the reason for a country's deficit— necessity or profligacy, unwillingness to tax or blindness to expenditure—it is beguiling to suppose that if the day of reckoning is postponed economic recovery will come in time to prevent higher unemployment or deeper recession. What if it does not? Germany in 1923 provides a vivid, compelling, sobering moral tale.

The greatest investment advisor of the twentieth century, Benjamin Graham taught and inspired people worldwide. Graham's philosophy of “value investing”—which shields investors from substantial error and teaches them to develop long-term strategies—has made The Intelligent Investor the stock market bible ever since its original publication in 1949. Over the years, market developments have proven the wisdom of Graham’s strategies. While preserving the integrity of Graham’s original text, this revised edition includes updated commentary by noted financial journalist Jason Zweig, whose perspective incorporates the realities of today’s market, draws parallels between Graham’s examples and today’s financial headlines, and gives readers a more thorough understanding of how to apply Graham’s principles. Vital and indispensable, The Intelligent Investor is the most important book you will ever read on how to reach your financial goals.

Called by H. L. Mencken, one of the few economists in history who could really write, Henry Hazlitt achieved lasting fame for this brilliant but concise work. In it, he explains basic truths about economics and the economic fallacies responsible for unemployment, inflation, high taxes, and recession. Covering considerable ground, Hazlitt illustrates the destructive effects of taxes, rent and price controls, inflation, trade restrictions, and minimum-wage laws. He also writes about key classical liberal thinkers like John Locke, Adam Smith, Thomas Jefferson, John Stuart Mill, Alexis de Tocqueville, and Herbert Spencer.