This comprehensive reference provides power users with a concentrated look at the scope of the software's options and quick access to the program's complex command usage and parameter rules—so vast it is nearly impossible for users to know the syntax of every command. Along with featuring listings of commands and brief descriptions of their respective syntaxes that answer the basic yet critical questions What command should I use? and What parameters do I need? this guide incorporates a handy summary of all LaTeX macros and environments and a convenient graphic resource containing examples of fonts for both plain text and math. Information on main “add-on” packages like array and graphicx, which are so widely used they are part of the de-facto standard system, is also included.