Collins English Paperback Dictionary and Thesaurus
Collins Dictionaries
Turning Point in Philosophy
Moritz Schlick
LSD and the Mind of the Universe
Christopher M. Bache
Das Wörterbuch des NLP: das NLP-Enzyklopädie-[..]
Walter Ötsch & Thies Stahl
Make It Stick: The Science of Successful Learning
Peter C. Brown & Henry L. Roediger Iii & Mark A. McDaniel
A Comprehensive Etymological Dictionary of the English Language: ...
Ernest Klein