Danny is a scientist. He enjoys exploring his yard and the world around him. The titles in the Scientist Danny Set include Ornithologist Danny, Botanist Danny, Geologist Danny, and Entomologist Danny. Secondly, as Ornithologist Danny, Danny observes different colored birds in his yard. As Botanist Danny, Danny studies the plants in his yard. Thirdly, as Geologist Danny, Danny collects rocks in his yard. And finally, as Entomologist Danny, Danny explores the insects in his yard.

The books in the Scientist Danny Set are part of the Danny Science Books series of simple texts that explain basic ideas about nature and science. Each book contains original photography and gently introduces young readers to the sciences that study the natural world and the relationships between organisms and their environments. The suffix –logist comes from the Greek word logy, which means “the study of.” Words ending in ologist indicate a person “who studies” something, often an academic subject.