Leslie, Roger. Review of Theo. Booklist (January 1, 2000): 902. Complimentary review approving Harrison's first novel though mistakenly characterizing the work as "a worthy addition to the many accounts of Jewish suffering during World War II."

Schliesman, Megan. Review of Theo. Horn Book Magazine (November-December 1999): 740. A carefully considered book review commending the author's first novel and her brilliant literary style.