Interlisp
Want HELPSYS/DInfo/man access to Common Lisp spec
and possibly Kaisler's book. The simplest would be a lookup of a URL
There are many copies of the Common Lisp Hyperspec on line: www.ai.mit.edu, clhs.lisp.se, dept-info.labri.fr, accela.net, lisphub.jc, etc. Anyone can display it (including us), but modification is forbidden. It is based on the ANS, and its special contents (the HTML formatting and some outlying pages) were made by Kent Pitman and are covered by Harlequin (now Lispworks) copyright. It is probably not possible to license the ANS itself, because the X3J13 committee is no longer functioning.
But the underlying draft standard, dpANS X3.226 version 2, though technically in copyright, is generally treated as freely available (like other draft language specs). Copies of it can be downloaded in HTML from https://mr.gy/ansi-common-lisp and in TeX (the original format) from https://github.com/xach/dpans.
You can find the changes between CLtL1 and CLtL2 by looking at the online copy of CLtL2 at https://www.cs.cmu.edu/Groups/AI/html/cltl/clm/clm.html for references to the images "gif/change_begin.gif" and "gif/change_end.gif". A VERY PARTIAL list of changes from CLtL2 to the ANS can be found at http://web.archive.org/web/20130807175341/http://bc.tech.coop/cltl2-ansi.htm.
