The concept of enough, too much and not enough are thoughtfully and simply conveyed in this picture book. One is a lot when talking about the sun, but not enough when talking about feeding ducks with one breadcrumb.

This story begins with a girl and her dog and a boy and his dog. Individually, the children play in the park with their pets and we see how the same number can be a lot, not enough or too much. Two is most often too much, especially when the two dogs’ leashes become tangled. But, one hello is a lot and brings the two friends and their pets together. The final page is a lovely scene with the now grown boy and girl, their daughter and a dog that looks like a mix of their two pets from the book’s beginning.

The illustrations are colorful and appealing. The text is minimal and the characters are diverse. The story will generate a good discussion about numbers and perspective.