The Blockchain Basics by Daniel Drescher. This is a very basic blockchain book. I would recommend this to someone completely unfamiliar with blockchain.
Daniel hits his mark as he places a repeated template for each step.
I felt the book had trouble flowing for anyone who has already read a blockchain textbook. Daniel pushes the elementary lessons through 25 steps.
There is a very basic outline of security on the blockchain. Again this book has a very specific target audience: Newbie. I have to admit that I was bored reading the text. Yet I was impressed by the lessons for newbies and related topics that are presented.