Not a big self-help book guy, but I wanted to read this since I've enjoyed following Dan Bigham's aero-optimization journey, truly starting with the hour record journey - and this book is from the times before that, so I learned a lot about what he went through and how they managed to do awesome things on the track with a very limited budget but a great mindset.
So yeah, it's inspirational, but there's likely not going to be anything mindblowing here in the "self-help" bits. But hey, I came here for the cycling and I got that!