Trade paperback, bound in red stiff card covers with French flaps. 90 pages, with publisher’s ads appended. Glossary. Stated first printing, August 12, 1983. Includes essay “Pythagoras and his School” by Raghavan Iyer. No previous ownership marks. No spine crease. Not ex-library. Printed in blue ink. Very mild wear to card covers at extremities. Else a clean, square, fresh and unmarked copy. Very good.