Harlequin's Nascar line of romance novels

Old Flame, New Sparks (Harlequin Nascar)



Full Throttle (Harlequin Nascar)



Hearts Under Caution (Harlequin Nascar)


Speed Dating (Harlequin Nascar)

Wow, Romance titles make up nearly 55% of all paperback fiction sales. Hat tip to JudgeABook.