Disney’s official fan club websites occasionally release PDFs of development art for anniversaries. Register for Disney’s D23 newsletter; they have offered Sanders’ Lilo & Stitch pitch documents (which are essentially storyboard sketchbooks) as free digital downloads in the past.
: This book provides a deep dive into the development of the film’s unique watercolor style and character designs based on Sanders' personal sketchbook work. Instructional Resources and Guides
of his drawing methods, use of blue pencil, watercolor washes, and character iteration (e.g., How to Train Your Dragon , Lilo & Stitch early designs).
