What Is Mathematics? Richard Courant and Herbert Robbins
1953. Sixth Printing. 521 pages. No dust jacket. Green cloth with gilt lettering. Bright and clean pages with light tanning to text block edges. Binding is firm throughout with minor thumb-marking. Previous owner's inscription to front pastedown. Pencil to rear pastedown. Boards have light shelf-wear with corner bumping. Mild tanning to spine and board edges. Mild crushing to spine ends.