Two books on philosophy and thought. This is a set of an introductory book that provides an overview of Leibniz's thought and Fromm's "To Have or To Be?". Recommended for those who want to read for general knowledge, or those who like philosophy and social thought. Set Contents • "Leibniz" (by Franklin Perkins / translated by Hiroshi Umehara and Norinari Kawaguchi) • "To Have or To Be?" by Erich Fromm (translated by Tetsuro Sano / Kinokuniya Bookstore) Condition • Used books, so there is a feeling of use such as scratches on the cover and obi (please check the photos) • No noticeable tears • Writing/Underlining: None (※Please forgive any oversight) • No smoking / No pets Shipping We will ship with waterproof measures, using anonymous delivery (Rakuraku/Yu-Yu Mercari). ※Basically sold as a set (please comment if you want to buy separately)