The German team have additional material for both the Math Guide and
the Draw Guide that would be valuable to add to the English books.
We need someone to translate this additional material. If necessary,
others can clean up the translation into better English.
If you can help, you'll need to start by identifying what bits are new
(or major revisions). Someone from the German side may be able to tell
you.
Please let us know if you can help. Thanks!
--Jean