la­tex2e-help-tex­info – Unoff­i­cal ref­er­ence man­ual cov­er­ing LaTeX2ε

The man­ual is pro­vided as Tex­info source (which was orig­i­nally de­rived from the VMS help file in the DECUS TeX dis­tri­bu­tion of 1990, with many sub­se­quent changes). This is a col­lab­o­ra­tive de­vel­op­ment, and de­tails of get­ting in­volved are to be found on the pack­age home page.
All the other for­mats in the dis­tri­bu­tion are de­rived from the Tex­info source, as usual.