What's the big deal about Bitcoin?

the long version

"It's been called everything from a giant Ponzi scheme to the greatest technological invention in history. Everybody is talking about Bitcoin, but nobody explains what it is. If you keep hearing about Bitcoin, but don't understand the fuss, this book is written for you. Learn about the technology, common objectiions, and real challenges facing Bitcoin, and understand why companies like Microsoft, Dell, and Overstock.com have all decided to accept the currency. No technical jargon, just the basic concepts presented in the simplest way possible. [Features a five-word definition of Bitcoin]."--Back cover. "By far the clearest, most enjoyable, and most enlightening book about Bitcoin I've read. This is a must-read for anyone curious about the currency."--Isaac Morehouse, CEO of Praxis.