I've read it (the previous version). Honestly, I don't think there's much in there that you couldn't find online with a little research. However, I read it after several years of growing my hair long and spending time on the LHC site, so I already knew a lot of the concepts for maintaining healthy hair. If you're new to all that--sulfate-free shampoos, CO, avoiding silicones, etc.--I think it's definitely worthwhile.
3a/b, F, normal porosity

I've gotten my routine down to the bare essentials, finally
Wash: Suave Tropical Coconut
Leave-in: Suave Everlasting Sunshine, detangle with Denman brush
Gel: LAL Sport or Wet Look
Scrunch with flour sack towel, plop 10 minutes, air dry
Refresh with either plain water or Suave/water mix