The Rainbow Fish

Marcus Pfister's fish starts out as the most beautiful creature in the ocean and treats his shimmering scales like something to hoard rather than share, until the story walks him toward giving pieces of that beauty away to the fish around him. The foil-stamped scales are the reason this Simon and Schuster title, first published in 1992, has stuck around for decades: they catch the light on the page the way real fish scales do, and preschoolers will want to touch them as much as look at them. At 32 pages and printed on board pages, it's built for ages 3 to 7 and sturdy enough to survive a toddler's handling.

The lesson lands through the physical act of giving rather than a lecture: watch the pile of scales get smaller as the circle of friends gets bigger, and the connection between the two is obvious to a preschooler without anyone needing to explain it. That makes it a natural pick for a family working through a rough patch around sharing at home, or for a classroom read-aloud where the moral needs to be visible on the page, not just spoken. It holds a 4.2 rating across nearly 3,000 Amazon reviews, the kind of steady, long-running popularity a picture book only gets by actually working for each new wave of preschoolers.