• LaTeX WikiBooks：This is a guide to the LaTeX markup language. It is intended that this can serve as a useful resource for everyone from new users who wish to learn, to old hands who need a quick reference.
  （中文版：LaTeX维基教科书）
• LaTeX for Complete Novices

PS1：两者都提供PDF电子书下载奥！
PS2：对于第二本书的网站，查看其上层链接会有更多惊喜！