These 10 designs are sized for 3, 6, and 12 months. All are quick and easy to make with the book's clear instructions and bonus online technique videos. Designs include: heirloom hat, brimmed hat with flower, cap with brim, bunny hat, cloche, striped hat, folded brim hat, spiral hat, pixie bonnet and bear hat. Patterns range from beginner to intermediate skill level with a section of general crochet instructions and diagrams. Almost all projects require US size 4 medium weight yarn and hook sizes G-6 or I-9; 4 and 5 1/2 millimeters respectively. Heirloom Hat is made using US size 3 light weight yarn.