This directory contains material presented in the book Guide To LaTeX, 4th Edition Helmut Kopka and Patrick W. Daly Addison-Wesley, 2003 as code, sample figures, processed files, as well as solutions to the exercises. All material here is subject to the terms of the LaTeX Project Public License, the current text of which is available at www.latex-project.org/lppl.txt H.K. and P.W.D. August 2003