Psychology and Logic: An Introduction to Philosophy is a book written by the author Theodor Elsenhans. In this work, the author considers important aspects of psychology and logic as fundamental sciences in philosophy. He explores the relationship between mental processes and logical laws, with an emphasis on the study of the human mind and thinking. The book opens the fascinating world of philosophy to the reader, helping to understand the complex concepts and ideas that underlie modern psychology and logic. "Psychologie und Logik: zur Einführung in die Philosophie" is an important and interesting work that will interest both professionals in the field of philosophy and anyone interested in the study of the human mind.