is a book on the programming-language J.
The most recent revision is the 11th draft, June 2006.
The aim of this revision is to make sure the material is in line with J version 601.
Click here to read it online as web-pages.
Click here for a single zip file of all the web-pages.(230 KB)
Click here for a version in Adobe .pdf format.(1.4Mb)
Click here for a version in MS Word .doc format (1.8 MB)
Roger Stokes 13 July 2006