Six cartoon cats progress from thin to increasingly rotund across a rainbow gradient scale, each illustration rendered in warm brown tones with simple, expressive proportions and playful postures. The chart mimics clinical measurement aesthetics while celebrating feline weight gain with bright color blocks ranging from green through yellow, orange, and red, creating humor through the contrast between scientific presentation and silly subject matter. Bound with 52 pages of 70lb paper, lined or unlined, behind an anti-scuff matte cover with wraparound artwork, made to order. Notes and sketches kept behind an independent artist's work, not a plain composition cover.