Q.E.D.: QUEEN'S EXPERIMENTS IN DETECTION By Ellery Queen, pen name of co-writers Frederic Dannay and Manfred B. Lee. New York: An NAL Book, The World Publishing Company, (1968). First edition, first printing. "First printing" statement to the copyright page. A collection of sixteen mystery stories with reader-challenging clue deductive plots. A decently presentable vintage first edition mystery. Bumped with short wear line to upper shelf-edge of the front cover, else very good in blue linen with gilt embossed titles and rules to the spine, smoke-black end-papers; in a very good plus price-clipped dust jacket with art by Lawrence Ratzkin, with nicks and rubs to the upper and lower spine edges, and a crimp to the upper front panel edge. The dust jacket will be placed in a clear protective, removable sleeve after scanning for this entry. PLEASE VIEW OUR STORE FOR MORE GREAT FIRST EDITION MYSTERY BOOKS THANKS!