ROY MACGREGOR is the best-selling author of more than 50 books and an award-winning journalist, author and screenwriter. He is an Officer of the Order of Canada, and he and Ellen live in Kanata, Ontario. MacGregor says that getting to know about Clarence and interviewing him was one of the great joys of his life.

CHRISTINE MACGREGOR CATION is a high school teacher in the field of visual arts. Clarence’s Big Secret, co-written with her father, is her first picture book. Like Clarence, Christine was reluctant to read and write as a child. Today she loves to read, especially with her children. Christine lives in Kanata, Ontario, with her husband and two children

MATHILDE CINQ-MARS illustrates picture books and graphic novels with pencils and watercolors, creates editorial art for magazines, and animation for television. She graduated from visual arts at Université de Strasbourg, and lives with her partner and daughter in Trois-Rivières, Québec. Mathilde could read by the time she was six, but has never cut down a tree or milked a cow! 

"This is a well-written ode to motivation, perseverance, and the idea that it’s never too late." - Kirkus Reviews

"The engaging text tells an unusual story with just enough detail to give it a period feel, bolstered by the well-composed drawings with washes of gentle color and plenty of understated charm. A memorable picture book." - Booklist

"Listeners will enjoy every moment of this inspirational and joyful book." - Sal's Fiction Addiction

"Tell[s] an interesting story and conveys important lessons about the value of reading and the fact that it is never too late to learn something new." - Canadian Review of Materials