Helpful Score: 2
Signet misclassifies the Tanner series books as mysteries, hoping to take advantage of Block's unblemished reputation as an exceptional mystery writer. The Tanner books aren't mysteries. Rather, they are humorous spy/espionage/adventure novels set in the late 1960s. They are wonderful books, and I highly recommend this and the others in the series. But just don't expect a mystery, despite what the cover tells you.