Jamberry by Bruce Degen (1995)

This classic book features a berry-loving boy and an endearing rhyme-spouting bear. The fun wordplay and bright paintings with lots of details for young readers to explore make “Jamberry” a perennial favorite.
A small boy and a big friendly bear embark on a berry-picking extravaganza, looking for blueberries, blackberries, and strawberries. Their fun adventure comes to a razzamatazz finale under a star-berry sky.