Mark Andrew Olsen is a full-time writer, novelist, and screenwriter. He is well-known for his collaboration with Tommy Tenney on the novel HADASSAH. Olsen grew up in France as the son of missionaries and graduated with a degree in Professional Writing from Baylor University. He currently resides in the mountains of Colorado with his wife, Connie, and their three children.

Series:
* Abby Sherman
* Hadassah