Recognizing and naming shapes is an important indirect preparation for reading. In the Montessori Primary classroom or Casa, the "Geometry Cabinet" contains puzzle shapes illustrated in My First Montessori Book of Shapes. This book can help introduce and reinforce at home what children learn hands-on in the Casa. Written and illustrated by AMI Diploma holder Mary Da Prato, My First Montessori Book of Shapes isolates and names many geometric shapes for three year olds to absorb and refine perception.