The book is currently available in three forms: browsable HTML, PostScript, and Adobe Acrobat (PDF). The PDF will be the most portable for most users, and the software needed to read the files is available, free of charge from Adobe's web site. Acrobat readers are available for Unix, Macintosh, and PCs. Many thanks to Paul Hausman for providing the Acrobat files. The PostScript is available as a compressed tar file (generally used by Unix systems) or as a ZIP archive (generally used by PCs). Many thanks to John DeCarlo for the ZIP file.
Other formats may be added as time allows.