— CM Magazine
"Set on the West Coast during the Second World War, this exquisitely sad and beautiful book tells of the friendship between Mary, a prairie girl visiting her grandmother for the summer, and Mr. Hiroshi, the next-door neighbour, who shares his garden with her until he is interned with the other Japanese Canadians in the area. When Mary says goodbye to Mr. Hiroshi, she promises to look after his garden. She keeps her promise until the house is sold, and then honours the friendship by transplanting two of his irises - a variety called flags - in the soil of her prairie home."
— Quill and Quire
"Ages 4 to 8 will enjoy the strong colours of these full-page illustrations for a story that is both sad, enlightening and educational."
— Burnaby Now
"Flags is a powerful retelling of a dark incident in Canadian history - the Japanese Canadian internment during World War II. Maxine Trottier has taken a small piece of this much larger and more complex story and told it in a language and setting which young children can understand."
— Association for Teacher-Librarianship in Canada