This book is divided into five sections. The section can be read in the order you like, but the most logical order is to begin from section 1 and stop reading after you've finished section 5. The information is non-technical and can be read by anyone who has a cryptocurrency wallet or hoping to get one, a cryptocurrency investor or one hoping to invest, a cryptocurrency trader or one hoping to trade, and those who seek to understand the concept of cryptocurrency and ICO including ICO project managers.In this book, we will attempt to cover the basics but also provide more in depth information on every topic. For advanced readers, some basic information will be common knowledge and could be skipped altogether. In this first section, we will give some background information about cryptocurrency, what it is, how to invest in it as well as the best time to invest in it. To help you understand what cryptocurrency is, we will take a dive into the concept of money and then return to the development of cryptocurrency.