IMAGINE A BOOK TEST WITH ONLY DRAWINGS. WITHOUT THE BOOK. $1.00 FROM THE SALE OF EACH PAD IS DONATED TO THE PEDIATRIC BRAIN TUMOR FOUNDATION (OVER $2000 DONATED SO FAR). AVAILABLE IN ENGLISH OR GERMAN EDITIONS! GERMAN EDITION INCLUDES GERMAN PDF INSTRUCTIONS + 3 ALTERNATE DRAWINGS FOR PHASE 3 + TEACHING VIDEO WITH JAN FORSTER! A MIN