Cercle

Circles: a mathematical view

D. Pedoe.

Ladybugs have lots of spots

Sheryl and Simon Shapiro

Circles: shapes in math, science and nature

written by Catherine Sheldrick Ross ; illustrated by Bill Slavin.

Petit Rond, debout!

Géraldine Renault, Naomi Katsu

Vicious Circles (Center for the Study of Language and Information - Lecture Notes)

Lawrence S. Moss, Barwise, Jon.

Orejo el conejo

Viviana Valenti

Circles (Stone Age Geometry)

Gerry Bailey

Dot

Patricia Intriago

Yuan dian: Dot

Patelixia Yinteliyage zuo ; Peng Yi, Yang Lingling yi

Celebrating Life: Rites of Passage for All Ages

Tzipora Klein