Six books, and you are buying one, so stop the moment something fits. Five and six is the tricky window to buy for, because you often don't know whether the child reads yet. Some five-year-olds are away already. Most aren't, and won't be for another year. So every book below says plainly whether a grown-up has to read it out loud or whether a new reader can get through it on their own. Find the one that matches what you know, buy it, wrap it.
It's six presents laid side by side, and the only question that really matters is whether the child reads yet. If they don't, or you don't know: Pete the Cat: I Love My White Shoes is the loud one a grown-up performs while the child bellows the same line back, and There Is a Bird on Your Head! is two friends arguing in speech bubbles, which is a two-person act on the sofa. If the child has just started reading on their own, Narwhal: Unicorn of the Sea! and Hi, Fly Guy! are the ones they can finish alone in a sitting — three tiny stories each, big pictures, a real finish line. Frog and Toad Are Friends is five quiet stories for a child who likes calm, and it works read aloud or read alone. Mercy Watson to the Rescue is the one for a child who's ready for actual chapters and a plot that runs from start to end. Buy one. Each is a whole gift by itself.