la­tex-info – Unof­fi­cial ref­er­ence man­ual for LaTeX

An un­of­fi­cial ref­er­ence man­ual cov­er­ing LaTeX 2e.
The Tex­info source was orig­i­nally de­rived from the VMS help file in the DECUS TeX dis­tri­bu­tion of 1990, with many sub­se­quent changes. All the other for­mats are de­rived from the Tex­info source, as usual.