Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
![An Essay On The Psychology Of Invention In The Mathematical Field [Hardcover]](/itemImage/2/7/8/7/2_1556394.jpg "An Essay On The Psychology Of Invention In The Mathematical Field [Hardcover]")