Signature Select was a short-lived single title imprint by Harlequin and Silhouette. Launched in 2005 it was already discontinued in 2006. It included new releases by authors like Gina Wilkins and themed collections like Write It Up!, but also reissues of the publishers' category romances. One of the several reissues of Elizabeth Lowell's Chain Lightning was published 2005 in this imprint.
Every Signature Select book included additional features like author's interviews, author's journals or hints on the author's series if the title was part of one.