From the front page:
Being a comprehensive catalogue of robot systems and a technical guide to assembling one.
Foundry: A Guide to Robots, Androids and Automatons is an alternative robot creation system to that which Dataware provides, with the goal of completely superseding Dataware on robot creation rules. Dataware chapters concerning Grid, programs and AIs are not within Foundry's scope.
This is not an official book, but a fan created book.