In River Girls, Cecilia "Pudge" Kleinkauf uses the real-life experiences of four young women- Alyssa, Samantha, Alex, and Blair- to create an informative and engaging introduction to the sport of flyfishing for pre-teen and teenage girls. Using a "girls can do this, too" approach, the book conveys the idea that flyfishing is more fun and challenging than other kinds of fishing and that it is definitely not just a sport for boys.