Bitcoin: A Work in Progress — eBook


By Sjors Provoost.

A book about soft forks, challenges of keeping open source software free of money-stealing bugs, new ways to protect Bitcoin nodes against evildoers, and more!

E-book version in various formats.



With thousands of “crypto” projects out there, they say Bitcoin is old and boring, but nothing could be further from the truth. This book will guide you through the latest developments in Bitcoin, as seen through the eyes of one of its many developers.

You’ll learn about the latest soft fork known as Taproot, the challenges of keeping open source software free of money-stealing bugs and malware, new ways to protect nodes against evildoers on the internet, how to deal with the ever-growing blockchain, and more!

Each chapter links to a corresponding episode of the Bitcoin, Explained podcast. The book also links to more than two hundred articles, videos, podcasts, and even the source code. And thanks to a tiny QR code next to every link, you’ll never have to type long URLs.

Sjors Provoost

The author is a software developer based in Utrecht, The Netherlands. He has been working in the Bitcoin industry since 2014 and became a Bitcoin Core contributor in 2017, giving him a front row seat to all the latest and most exciting technical developments. He is a co-host on the Bitcoin Magazine podcast Bitcoin, Explained.


Here’s a free PDF with table of contents and the first chapter about Bitcoin addresses.


Your download includes several formats:

  • epub: works pretty much everywhere, but doesn’t look as good (in my opinion)
  • pdf
    • Kindle sized: ideal for readers that are about the size of a Kindle
    • A4 size: ideal for a large iPad

Some helpful hints for how to put the file on your e-reader:

  • Kindle: PDF can be copied via USB, ePub needs to sent to your Kindle email
  • Apple Books: just double click

Please contact me if you’d like a different format or need a bigger font. Let me know the reading device you’re using, include a photo of what it looks like now and I’ll see what I can do.

Prefer dead trees?

Buy the physical book.