Explanations are always illustrated screens obtained not the code. The book reads all alone (you still have to turn pages ;-)).
I advise (I should say "I force") beginners to start with this book and I recommend it to people who believe know but if that do not code "clean". Indeed, the author we learn the good habits with the XHTML 1.0 and even validate its content.
Do not hesitate, this is an indispensable reference for your library.