About The Author

Debbie Adler is an Occupational Therapist, wife, mother of three adult children, and grandmother, with a deep passion for supporting children’s emotional wellbeing.

Rainbow Roy and Rainbow Rosie was inspired by Debbie’s own experience of using colour and breathing techniques to manage anxiety.

Through this beautifully illustrated book, she hopes to empower both children and adults with simple, practical tools to regulate emotions and bring a sense of calm into their everyday lives—whenever and wherever it is needed.

Debbie is pictured with her dedicated husband Kevin Adler.

About The Illustrator

Dominique Mumberson is an Australian illustrator and artist known for her distinctive, emotive style, blending delicate linework with vibrant, expressive colour palettes.

Living in country New South Wales, she brings a unique, nature-inspired perspective to her work, with a particular love for Australian animals—especially the Kookaburra, which often inspires her creativity.

Dominique’s collaboration with Debbie Adler on Rainbow Roy & Rainbow Rosie marks the first time she has worked with an author, bringing heartfelt narratives to life through artwork that feels both whimsical and deeply relatable.