The Entire Project Gutenberg Works of Mark Twain
Mark Twain
Spiral Dynamics: Mastering Values, Leadership, and Change
Christopher C. Cowan & Don Edward Beck
William Blake's Illustrations for Dante's Divine Comedy
Eric Pyle
Child's Conception of Geometry
Piaget, Jean & Inhelder, Barbel & Szeminska, Alina
Psychologie und Religion
Carl Gustav Jung
Die Gnosis: Wesen und Geschichte einer spätantiken Religion
Kurt Rudolph