Miss Scarlet in the study with a knife?

No, that's just Diane.

After two decades working for a top luxury retailer, Diane Vallere traded fashion accessories for accessories to murder. She is a national bestselling author and a past president of Sisters in Crime. She started her own detective agency at age ten and has maintained a passion for shoes, clues, and clothes ever since. 



Diane Vallere is a mystery writer with over twenty-five titles to her name. Both her Material Witness Mysteries and Costume Shop Mysteries (published by Penguin Random House) were national bestsellers and Lefty-Award nominees for best humorous mystery. She also writes the Madison Night Mad for Mod Mystery Series for Henery Press, and under her independent label, Polyester Press, publishes the Samantha Kidd Style & Error, Sylvia Stryker Space Case, and Mermaid Cozy Mystery series. She has contributed short stories to several anthologies, most recently MURDER-A-GO-GO’s: Crime Fiction Inspired by the Music of the Go-Gos (Down & Out Books).

Diane served as president of both local (Los Angeles) and national boards of Sisters in Crime and remains an active member. As her legacy project for the organization, she is currently editing PROMOPHOBIA, a collection of essays on promotion for writers to be published by Wildside Press in 2020.

Diane has attended Malice Domestic Mystery Convention, Bouchercon, Left Coast Crime, and New England Crime Bake and has served as co-chair of California Crime Writers Conference. Her newsletter, The Weekly DiVa, has an active following, focusing on girl talk, book talk, and life talk.

Diane is a graduate of The College of William and Mary (1989) with a BA in Fine Arts and has spent over twenty years working in the retail fashion industry in buying, management, planning, and sales. As a buyer, she combined creative thinking with analytical analysis. She was responsible for writing the creative media campaigns for the clearance division of a major luxury retailer along with drafting and implementing the long-term strategic plan. She has worked as assistant store manager for the original location of a 100-year-old luxury retailer, and in her career has worked closely with visual merchandising to imagine and execute theme events through display, fashion trends, and shopping incentives.

Diane was born in Pennsylvania but has lived in Dallas, Texas and Los Angeles, California. These days, Diane is back in eastern Pennsylvania, where she spends her days working on her next cozy mystery.


About Diane By Diane

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