Computers & Typesetting, Volume B TeX The Program

Readers who are already familiar with TeX and with its user's guide, The TeXbook, will find much of interest in the source code. Other readers interested in software development and in Knuth's programming style will find this a fascinating and instructive case study. Never before has a computer program of this size been spelled out so clearly and completely. Knuth presents all the algorithms and explains every detail of the TeX program, utilizing the WEB system of structured documentation that he developed as part of his TeX research project.
TeX: The Program is the second in a five-volume series on Computers and Typesetting, all authored by Knuth. This series presents the results of nearly a decade of innovative research on the problems of preparing publications of high quality.