The Beeman, written by Laurie Krebs and impeccably illustrated by Valeria Cis, is a cute and very educational book about a little boy whose grandfather is known around town as "the beeman". This is, of course, because his grandfather is a bee keeper. In my opinion, children as young as 3 will enjoy this book, although the official recommendation is ages 5-9.
The grandson narrates the life of his grandfather, showing us the clothing and tools of the trade. It goes fairly in depth, talking about smokers, extractors, and, of course, bees.
Lots and lots and lots of bees. He shows us the queen, the drones, the workers, and the house bees, tells us the differences between their bodies, and describes their jobs.
Like many Barefoot Books, at the back of "The Beeman" is an additional appendix, going into more detail about the things in the book. In this case, we learn more about bees, beekeeping, honey, and how important it is for us to care for bees (including returning some of their honey to them).
There is also a (really good) recipe for "Grandma's Apple Honey Muffins", which are eaten in the book.
"The Beeman" is short and the plot is fairly simple, but there's a lot of very accessible information in there. If your children are at all into bees, honey, farming, or just curious about how things are made or where things come from, they'll likely ask for this Barefoot Book over and over! (Damien has forbidden me from selling ours, despite us having multiple copies.) And baking together after reading it adds for extra fun!