Brenna Cassidy

Brenna Cassidy is a wildlife biology PhD candidate at the University of Montana. She studies the survival and reproductive ecology of gray wolves. You can often find her half way up a snowy mountain tagging a tranquillised gray wolf so she can better study its movements. Gray Wolf (Young Zoologist) is her first book.

Sally Agar is an illustrator and designer based in North Yorkshire, UK. She loves working with color, texture, and pattern, and aims to bring a bit of everyday magic to her illustrations. Sally returned to the UK after ten years living in Stockholm working as a Print Designer for fashion companies. When she's not in her attic studio working on her latest painting, Sally is happiest out in nature with her young son by her side.