"The Textbook on Emptiness" is an essay with empty pages full of ingenious ideas and profound wisdom, a book full of unbelievably intense emptiness. It was explicitly written to save the world, and thanks to its readers, the book will of course do just that. It was created in Venice, in front of empty glasses on the banks of the Grand Canal. This book has two fathers but no mother, which probably explains the emptiness perfectly. The original title in German is "Lee(h)rbuch", a German wordplay of "Leerbuch" - empty book - and "Lehrbuch" -textbook. The aim is to lead you into the void, where you - hopefully - will find your way out again towards the end.