The goal of this project is to build up an online textbook on classical and quantum field theory in a geometric language. It has been started in 2018 and is maintained by Markus J. Pflaum. The ebook is work in progress and is intended to grow over time. A printable document can be viewed and downloaded here, a table of content for the online viewable sections is available here.
A git repository has been setup for the project under gitlab.com/librimathematicae. It contains the LaTeX sources of the ebook and a log of revisions.