Even if your little sprouts seem to set up a grudge match over just about everything: choosing the Friday night movie, toppled LEGO towers, and endless hours of she-touched-me-again, in the end, a brother or sister is a built-in best friend. (Who better to help drive Mom crazy or snicker with at Dad’s creative cooking?). Flip through the album to see our picks for best picture and chapter books celebrating the ultimate family bond.

Gemma and Gus

Age: 2-5

“Gemma is a small yellow gosling. She is the big sister. Gus is a smaller yellow gosling. He is the little brother.” In this diminutive picture book—just perfect for little hands—downright adorable illustrations illuminate the briefest of texts and simplest of plots. Whether they sympathize with the older or the younger, all siblings will recognize the “stop following me!” scenario.

Available at hmhco.com, $9.99.

What’s your favorite book about siblings? Share with us in a comment below!

— Emma Bland Smith