Want to mine some bitcoins? Want to earn for free? Have an unused Raspberry Pi? Then give me some bitcoins! Step 1. What is Bitcoin? If you don't know yet, Bitcoin is a virtual currency created in 2009. Bitcoin has grown in reputation over the past few years, becoming a very popular way to pay for services via the Internet. Recently, its value has skyrocketed, thanks to much media hype in both positive and negative ways. There are two ways to get bitcoin: - buy it in the exchanger; - to mine it. Mining is the process of validating transactions on the blockchain. This book is dedicated to installing and configuring programs on the Raspberry Pi, with which you can mine bitcoins.