This book consists of two titles, related to bitcoin and altcoins:

Title 1 - A crypto wallet is a tool for storing your bitcoins. Specifically, it is software designed to keep your Bitcoin secure. This software can be run on various devices including desktop computers, laptops, and mobile phones (though currently not on Apple devices). It can also be configured to store bitcoins on physical media like thumb drives, which is a good option if you are concerned about hacking. For example, the Winklevoss twins, who have invested millions in Bitcoin, use hard drives to store their assets and keep them in a safe-deposit box.

The Winklevoss twins originally conceived the idea for a social networking site that eventually became Facebook. They collaborated with Mark Zuckerberg, who took their idea and became exceedingly successful.

Title 2 - In this book, I'll introduce you to the world of blockchains, exploring what they are, how they came about, their applications, and the various topics that surround them. It's not surprising that the technology behind blockchains is unfamiliar to many; it seems to be known mainly by those in the financial sector. This makes sense, as that's where the technology originated and where it continues to thrive.

But that unfamiliarity with blockchains will soon come to an end. This book will acquaint you with blockchains and provide the information you need to understand this promising technology. I assure you that the content here is thoroughly researched and carefully considered, all to equip you with the knowledge you need.