This is my attempt to write a simple plain English book on the basics of Crypto-currencies, using them and trading and investing in cryptocurrencies. The ambition of this book is to be a primer for any ‘newbie’ to the arena. We will look at the technology, the various uses where it is and can be deployed and give fundamental insight [basically common sense] where crypto could go next and how it affects industry. Reading this with your own background and specialism should allow you to harmonise your knowledge and benefit from Crypt’s presence in the 21st century. I hope as a friend recently told me it could have save a lot of very long headaches!