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.Glenda Rosen) author of ten books including, The Senior Sleuths and Dying To Be Beautiful Mystery Series and The Gourmet Gangster, Mysteries and Menus (with her son Jory Rosen), published by Level Best Books…plus, The Woman’s Business Therapist and award winning My Memoir Workbook. For 25 years owner of a successful national marketing and public relations agency. Marcia has helped numerous authors write and publish their books as well as develop and implement marketing plan for them.  Speaker on numerous topics, in-person and on Zoom include: “Encouraging the Writer Within You, Getting Published, Now What (Marketing for Authors), Writing Mysteries…Not A Mystery, “Telling Your Story…Memoir Writing, and Writing From Your Soul. Programs have been presented for Libraries, Bookstore, Mystery Writers Organizations and The National Steinbeck Center. 


 Summer and fall, 2021, Memoir Writing for Older Adults, Jewish Community Center, Albuquerque, N.M. and Moderator for several programs, Women Writing the West Virtual Conference.


Vice President of Sisters In Crime Albuquerque (Croak & Dagger), Southwest Writers, N.M. Book Association, Women Writing the West, Central Coast Writers, Public Safety Writer’s Association and Board Member 2021, National Association of Independent Writers and Editors.  Home is in Albuquerque, New Mexico.

Learn more about the Senior Sleuths: Dick and Dora Zimmerman

Watch the video!

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



The Gourmet Gangster:

Mysteries & Menus by The Family

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