This Book is a must have for any motor head. 512 pages hard cover. 150 technical drawings and 100 charts. The most detailed book I have ever seen on the OFFY. Printed In USA. Kenneth E. Walton is the author and has co-written other OFFY books. Covers all OFFY's from the 20's on to the Turbo era. From Miller to Offenhauser to Myer Drake the history is all there. Selling on Ebay for $99.95 or a Leather Bound Edition for $150. Put it on your wish list.