A little girl discovers things that are round, square, and rectangular in her Hispanic American neighborhood.

When his friend Circle asks him to do her portrait after praising him as a sculptor and genius, Square struggles to carve her likeness from a stone block.

"Round, curvy, pointy, or straight-shapes are all around us. With illustrations that highlight shapes in all their forms, this book reinforces the identification of circles, squares, crescents, diamonds, triangles, rectangles, trapezoids, and ovals while encouraging kids to pair shapes together to make new forms"--

In a place where jobs are based on shape, Sam, who looks like a square but longs to roll like a circle, discovers his true, unique shape.

When Triangle breaks the rule about not hiding behind the waterfall while playing hide-and-seek with Circle and Square, Circle must rescue him.

While learning to make tortillas on her seventh birthday, Magda tries to make perfectly round ones like those made by her grandmother but instead creates a variety of wonderful shapes.

After Triangle plays a trick on Square, Square plans to reciprocate but runs into trouble when he tries to enter the triangular doorway of Triangle's home.