Advanced LaTeX Tutorial/Book [closed]

Answer 1

Have a look at the LaTeX Companion.

Answer 2

Have a look at the answers in these questions:

• Best practices in LaTeX
• What is the fastest way to learn LaTeX basics? (especially the second answer has some nice references)

Answer 3

I have been using a few books over the years,

1. Guide to LaTeX by Helmut Kopka and Patrick W. Daly
2. The LaTeX Companion (Tools and Techniques for Computer Typesetting) by Frank Mittelbach, Michel Goossens, Johannes Braams and David Carlisle

And the clssic

1. LaTeX: A Document Preparation System by Leslie Lamport

Also,

1. the soft book available at http://www.ctan.org/tex-archive/info/lshort/english/ is a moderately good one.

Moreover, as advised above, make it a practice to read the dtx files when you start using a new style file.

Answer 4

For the really advanced stuff, nothing can beat the dtx files describing the LaTeX classes themselves. Your TeX distribution might not have shipped them, so get them from CTAN; the dtx files are usually stripped of comments before being installed, but you can compile them with LaTeX to get the comments and code nicely typeset.

TUGboat has some advanced articles as well.

Answer 5

Some of these advanced topics are covered in the Wikibook. There is also the (Not So) Short introduction to LaTeX2e.