Hardcover. London, England, Oxford at the Clarendon Press, 1st Edition, 1901, Book: Very Good, 316 pages. Hardcover. Previous owner's info on front endpapers. Blue cloth cover boards (light agewear), gilt title on spine. Pages clean. Spine straight. Binding good. An exhaustive analysis of Spinoza's metaphysical ideas and system.

Hardcover. London, UK, Routledge & Kegan Paul, Reprint, 1975, Book: Very Good, Dust Jacket: Very Good, 404 pages. Hardcover. Volume 2 ONLY. Red cloth cover boards, gilt title on spine. Foldout family trees of the House of Medici, etc. attached. Previous owner's notes/underlining on a few pages in pencil. Top edge dyed orange. Dust jacket price clipped. Some tape outlines on front flyleaf and back page. First published in 1950, this classic translation by the late Leslie J. Waker has been out of print for some years. It is now reissued complete, together with an introductory essay by Cecil H. Clough which places Father Walker's contribution in the context of current researches.

Softcover. Malden, NA, Wiley-Blackwell, 1st, 1998, Book: Very Good, Dust Jacket: None, 272 pages. Softcover. A very clean, unmarked copy with only minor edgewear.

Softcover. Great Britain, Cambridge University Press, 1st Paperback Edition, 2015, Book: Very Good, Dust Jacket: None, 487 pages. Softcover. B/w diagrams throughout. Pages clean adn bright. Binding good. Wrapper excellent, glossy. In beautiful condition. "In On the Fourfold Root Schopenhauer takes the principle of sufficient reason, which states that nothing is without a reason why it is, and shows how it covers different forms of explanation or ground that previous philosophers have tended to confuse."

Hardcover. Cambridge, UK, Cambridge University, 1st Edition, 1929, 509 pages. Hardcover. Previous owner's book plate on front flyleaf. Brown cover boards, crease through center of top cover board, but board is straight and unbent. Pages unmarked. Spine straight. Binding good. The lectures are based upon a recurrence to that phase of philosophic thought which began with Descartes and ended with Hume. The philosophic scheme which they endeavour to explain is termed the "Philosophy of Organism".