There are many reasons authors write under two or more pen names. These nom de plumes are done to differentiate between publishers, book series, writing styles, genres, and more. It’s all about branding, making it "easier" on the reader to find what they're looking to read.
I don’t know about you but I need a cheat sheet to know which authors is really the same person! I cobbled together a quick list of some of the larger named authors, feel free to add the ones you know to the mix. See how 12 people make up 35 authors!
1-7: Jayne Ann Krentz is the perfect example of why an author switches names. She has 7 in total! When she isn’t writing contemporaries as Jayne Ann Krentz, she publishes historicals under Amanda Quick. On top of that she is in print under the names Jayne Bentley, Jayne Castle, Jayne Taylor, Amanda Glass, and Stephanie James.
8 & 9: Next is the most obvious NYT bestselling author Nora Roberts. She is also J. D. Robb.
10 & 11: JR Ward writes in addition under the name Jessica Bird.
12 & 13: Elizabeth Hoyt’s other alias is Julia Harper.
14 & 15: I love Julie Garwood! Did you know she also creates stories by the name of Emily Chase?
16 & 17: Amelia Grey, who has guest blogged here at Love Romance Passion, is Gloria Dale Skinner.
18-21: Big name author Sandra Brown goes by Laura Jordan, Rachel Ryan, and Erin St. Claire.
22-24: The lovely Victoria Holt writes for us also by the names Phillipa Carr and Jean Plaidy.
25 & 26: Emily Bryan and Diana Groe is the same author.
27-29: Sabrina Jeffries will scribble under the names Deborah Martin and Deborah Nicholas.
30-33: Hannah Howell writes lots of wonderful highlander novels. She is Sandra Dustin, Sarah Dustin, and Anna Jennett on top of that! Wow!
34 & 35: Suzanne Brockmann also publishes under the name Anne Brock.