I enjoyed this book. I'm not sure it was worth the £8 plus I paid for it, but a hard copy would have been fine. I think it could have done with some more step by step pictures , for example when talking about crank removal , it's followed up with a paragraph explaining how to do it- I had to go on YouTube to see what they meant. This might just be me, but I'm better at fixing things with a visual demo. Don't let that put you off though, still very useful stuff for cyclists. The main reason for purchase was to expand my bike knowledge and to be able to pull out my phone and refer to the book if stuck. It's happily will do both.