Tam is an author known for crafting historical fiction and mysteries centered on resilient women navigating societal constraints. Her works include the Adele Gossling Mysteries, set in the early 20th century and featuring a suffragist protagonist whose crime-solving skills challenge small-town norms. She also penned the Grave Sisters Mysteries, a series following three sisters running a funeral home while assisting in criminal investigations in 1920s California. Additionally, Tam explores themes of female independence in her Waxwood Series, a four-book collection set in the 1890s, and the short story collection "Lessons From My Mother’s Life," which delves into post-World War II experiences.
Her writing often highlights women defying social expectations, with settings predominantly in the Bay Area, reflecting her passion for San Francisco’s history and culture. Tam’s characters are marked by their sassy yet sensitive personalities, offering readers a window into the struggles of women forging their identities in restrictive eras. Though she resides in the Midwest for practical reasons, her love for classic literature, films, and art continues to inspire her work. When not writing, she enjoys plant-based cooking and exploring her riverside community.