This is version 1.001 of the PerlGP manual, which refers to version 1.0.0 of PerlGP, released on 03 Feb 2003. While every effort has been made to keep the manual up to date and accurate, it is not guaranteed to be free of errors and omissions. The author is not responsible for any losses or inconvenience caused by such errors. All reports of errors and suggestions for improvement or clarification are welcome. This manual is copyright Bob MacCallum 2003.