Beginner's manual (71 pages) by Tobias
Oetiker, Hubert Partl, Irene Hyna, and Elisabeth Schlegl,
available in various formats. For a LaTeX beginner the most convenient version is the
pdf version
available from Tobias Oetiker's home
page. I was able to print this on a Sun workstation, but some people have
had trouble with it, so they might try instead to get the dvi file
(see below).
A PostScript version
for European A4 paper is available, but in the United States
you may have trouble printing it; however, if your system has
the psresize
utility from the PSUtils package, then you
can reformat the file for U.S. letter paper.
You can instead download the dvi file,
and run it through dvips to print it.
This is the basic manual by Leslie Lamport, creator of LaTeX. The second edition was published by Addison-Wesley in 1994. It covers LaTeX2e.
By George Grätzer. Published by
Birkhäuser in 1996,
this
book
has full coverage of the amsmath package. Tom Scavo has
a
web
page where you can go to get a short course in PDF format and
various other materials connected with the book.
For experienced LaTeX users, this book by Michel Goossens, Frank Mittelbach, and Alexander Samarin, published in 1994 by Addison-Wesley, is essential reading if you want to go beyond the basics and customize, use add-on packages, and so forth. There is also, The LaTeX Graphics Companion, by Michel Goossens, Sebastian Rahtz, and Frank Mittelbach, which was published by Addison-Wesley in 1997.
By Donald E. Knuth, creator of TeX, the program that underlies LaTeX, this is the bible of the TeX world.