Here are some useful links:
1. about the book
foreword to the book (as written in the paper version) pdf 18kb
example pages (the first 18 pages of the book) pdf 335kb
2. for help
complete lists of all labels:
HELP NEEDED!
actual working sheets:
Here are pdf´s to download with labels containing gaps.
(p+c) Joachim Gaertner 2003-2010
the book to this page
here´s the link to the