I admire your candor… at least You gave it a go - in the deep end with no swimming lessons!
The book in general is aimed at designers not gearheads.
This book quickly got me to the point of understanding some of the more involved posts on this (and other) Forum(s). I could also do my own additional research without feeling lost~overwhelmed.
p.s. I think jQuery is an excellent library to learn - consider it a bonus part of the book.