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      Book Series by Author: O

      Browse FictionDB book series written by authors whose last names begin with O, including book counts, genres, and age-level information for quick browsing.

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      Letter: O Showing: 51–100 Total series: 364
      Only in Seaside 3 books
      by O'Connor, Shannon
      Primary Genre Contemporary Romance
      The Waves Trilogy 3 books
      by O'Connor, Shannon
      Primary Genre Contemporary Romance
      Related Books 2 books
      by O'Cork, Shannon
      Primary Genre Romantic Suspense
      The Foundation 2 books
      by O'Day-Flannery, Constance
      Primary Genre Paranormal Romance
      Yellow Brick Road Gang 3 books
      by O'Day-Flannery, Constance
      Primary Genre Paranormal Romance
      Cassandrah Farbanks 3 books
      by O'Dell, Sonnet
      Primary Genre Paranormal Romance
      Rivercast Immortals 7 books
      by O'Dempsey, Maggie
      Primary Genre Paranormal Romance
      Bridgewater Bachelors 3 books
      by O'Donnell, Jodi
      Primary Genre Contemporary Category Romance
      Related Books 2 books
      by O'Donnell, Jodi
      Primary Genre Contemporary Category Romance
      Related Books - 2 2 books
      by O'Donnell, Jodi
      Primary Genre Contemporary Category Romance
      Angel's Assassin 3 books
      by O'Donnell, Laurel
      Primary Genre Historical Romance
      FBI Strike Force 2 books
      by O'Fallon, Tee
      Primary Genre Action Adventure, Contemporary Romantic Suspense
      Federal K-9 7 books
      by O'Fallon, Tee
      Primary Genre Contemporary Romantic Suspense
      K-9 Special Ops 4 books
      by O'Fallon, Tee
      Primary Genre Contemporary Romantic Suspense
      NYPD Blue & Gold 3 books
      by O'Fallon, Tee
      Primary Genre Romantic Suspense
      Related Books 2 books
      by O'Flaherty, Louise
      Primary Genre Historical Romance
      Time-Travel to Regency England 2 books
      by O'Grady, Kristina
      Primary Genre Romance
      Related Books 2 books
      by O'Grady, Leslie
      Primary Genre Traditional Regency
      A Bad Boy Romance 2 books
      by O'Keefe, M.
      Primary Genre Contemporary Romance
      Everything I Left Unsaid 4 books
      by O'Keefe, M.
      Primary Genre Contemporary Romantic Suspense
      Morelli / Constantine 3 books
      by O'Keefe, M.
      Primary Genre Contemporary Romantic Suspense
      Boys of Bishop 4 books
      by O'Keefe, Molly
      Primary Genre Contemporary Romance
      Cooking 3 books
      by O'Keefe, Molly
      Primary Genre Contemporary Category Romance
      Crooked Creek Ranch 3 books
      by O'Keefe, Molly
      Primary Genre Contemporary Romance
      Into The Wild 3 books
      by O'Keefe, Molly
      Primary Genre Historical Romance
      The Mitchells of Riverview Inn 3 books
      by O'Keefe, Molly
      Primary Genre Contemporary Category Romance
      Notorious 3 books
      by O'Keefe, Molly
      Primary Genre Contemporary Romance, Women's Fiction
      The Notorious O'Neills 3 books
      by O'Keefe, Molly
      Primary Genre Contemporary Category Romance
      The Riverview Inn 5 books
      by O'Keefe, Molly
      Primary Genre Contemporary Romance, Women's Fiction
      Serenity House 2 books
      by O'Keefe, Molly
      Primary Genre Contemporary Category Romance
      Cozy Cottage Cafe 4 books
      by O'Keeffe, Kate
      Primary Genre Women's Fiction
      Royally Kissed 3 books
      by O'Keeffe, Kate
      Primary Genre Romance
      Second Chance Cafe 3 books
      by O'Keeffe, Kate
      Primary Genre Romance
      Wellywood 4 books
      by O'Keeffe, Kate
      Primary Genre Romance
      Related Books 8 books
      by O'Kerry, Janeen
      Primary Genre Romance
      Black Dawn 8 books
      by O'Leary, Caitlyn
      Primary Genre Romance
      Found 3 books
      by O'Leary, Caitlyn
      Primary Genre Paranormal Romance
      Midnight Delta 13 books
      by O'Leary, Caitlyn
      Primary Genre Contemporary Romantic Suspense
      Night Storm 8 books
      by O'Leary, Caitlyn
      Primary Genre Contemporary Romance
      Omega Sky 7 books
      by O'Leary, Caitlyn
      Primary Genre Contemporary Romantic Suspense
      Protectors of Jasper Creek 9 books
      by O'Leary, Caitlyn
      Primary Genre Contemporary Romance
      Girl on a Plane 2 books
      by O'Leary, Cassandra
      Primary Genre Contemporary Romance
      Dreamlander Express 3 books
      by O'Leary, Michael
      Primary Genre Romance
      Kerry 4 books
      by O'Leary, Susanne
      Primary Genre Romance
      Magnolia Manor 5 books
      by O'Leary, Susanne
      Primary Genre Contemporary Romance
      Riviera Romance 4 books
      by O'Leary, Susanne
      Primary Genre Romance
      Sandy Cove 7 books
      by O'Leary, Susanne
      Primary Genre Contemporary Romance
      Starlight Cottages 6 books
      by O'Leary, Susanne
      Primary Genre Contemporary Romance, Women's Fiction
      Tipperary 4 books
      by O'Leary, Susanne
      Primary Genre Romance
      The Enchanted Highlands 10 books
      by O'Malley, Tricia
      Primary Genre Paranormal Romance Romance