Our History Influences & Inspires Us

"After a career as an entrepreneur and writer of nonfiction books, Marcia G. Rosen took on the pen name

M. Glenda Rosen to begin a career as a mystery author. The program delves into her experience of growing up with a father who was a gangster and the history of Jewish organized crime in America. Growing up with a father involved in organized crime inspired Rosen's fascination with crime and love for all things mysterious. Rosen's interest in crime was the catalyst for her creation of the book series The Senior Sleuths,

which features a criminal character modeled on her own father."

-Walter Ryce, Monterey County Weekly








































More About the Author

Marcia Rosen, (aka M.Genda Rosen) frequently speaks about writing mysteries and growing up as “the gangster’s daughter.” She is author of “The Senior Sleuths” mysteries and her publisher Level Best Books will be re-releasing her Dying To Be Beautiful Mystery” Series beginning in 2020. She is also author of “The Woman’s Business Therapist,” and the award-winning “My Memoir Workbook.”  She was founder of a successful marketing/public relations agency and received numerous awards for her work with business and professional women. She is a member of Sisters in Crime, Central Coast Writer’s, Public Safety Writer’s Association, The Mob Museum, and as of January 2020, host of MysteryLoversPodcast.com

Learn more about the Senior Sleuths: Dick and Dora Zimmerman

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Available NOW on Amazon.com, B&N, and in Bookstores near you!

Marcia G. Rosen, member:

 Sisters In Crime, Los Angeles, San Francisco and National

Woman’s National Book Association, Co-Chair

Public Safety Writers Association

Central Coast Writers

Greater Los Angeles Writers Society

PULSE, New York

The Mob Museum, Las Vegas, NV


Speaker at following book conferences:
Women’s National Book Association

Malice Domestic

Public Safety Writer’s Association

Great Valley Bookfest

And numerous book talk events throughout the country.




The Gourmet Gangster:

Mysteries & Menus by The Family

Guest Post & Recipe featured on:
Mystery Reads, Mystery Fanfare, Thonie Hevron & Marilyn's Musings