Yes, I have read both.

The beginner's book is in really simple language and perfect for someone who wants to learn about crypto. For me, it was a little bit boring as I knew the majority of the stuff there. But still, a nice read and it's never a bad thing to rethink some fundamentals of a subject you think you know a lot about.

Bob the blocktrain book - this is for kids obviously and for parents to read to their kids to teach new tech. Again, great for kids, colorful, informative, playful - the way kids books should be - learn through playing and storytelling.