- Invitation to the Blues by Roan Parrish
- Iron and Magic by Ilona Andrews
- Irresistible by Mary Balogh
- Isn’t it Bromantic? by Lyssa Kay Adams
- It Takes Two to Tangle by Theresa Romain
- It Takes Two to Tumble by Cat Sebastian
- It’s in His Kiss by Julia Quinn
- It’s Witchcraft by Cole McCade
- Jackdaw by K.J. Charles
- Jane Steele by Lindsay Faye
- Julian Fellowes’s Belgravia by Julian Fellowes
- Junk Shop Blues by Cole McCade
- Just Business by Anna Zabo
- Just One Night by Felice Stevens
- Kill Game by Cordelia Kingsbridge
- Knave’s Wager by Loretta Chase
- Knight of Desire by Margaret Mallory
- Lady Be Bad by Megan Frampton
- Lady Claire Is All That by Maya Rodale
- Lady in Green by Barbara Metzger
- Lady Maggie’s Secret Scandal by Grace Burrowes
- Lady Sarah’s Sinful Desires by Sophie Barnes
- Last Christmas in Paris: A Novel of World War I by Hazel Gaynor and Heather Webb
- Last Night’s Scandal by Loretta Chase
- Learning Curve by Kaje Harper