With Round, Joyce Sidman helped young readers identify the many instances of circles in nature; in Branches, she shows how the branching pattern appears on land and in the sea, from corals to broccoli, trees to arteries and veins. Back matter provides a definition of branching (a pattern that divides into two, forming a Y) and refers back to the page spreads (e.g. "Branches...Spark" calls back to the page on lightning; "Branches....Flow" refers to rivers). An excellent read-aloud. ( )