"Domesticated plants and other mutants" will answer some of the questions you didn't even know you had: Have the species we consume today always been edible? If you plant a banana from the Canary Islands in Beijing, is it a banana from the Canary Islands or from Beijing? Why do we want seedless watermelons and where do the seeds come from to plant new seedless watermelons? A fun way to understand how, for example, species have changed throughout history.