Jeff Pfeiffer has been an avid collector of Marx and MPC prehistoric playsets for well over a decade. Over the course of that time he has amassed an extensive collection of playsets from both companies. He holds a Master of Science degree in Vertebrate Zoology and has served as an instructor of biological sciences at several colleges and universities. He currently resides in Little Rock, Arkansas, and works as a reptile biologist at the Little Rock Zoo. He also divides his time as a professional musician, an avocation which began in his early teens. His passion for dinosaurs began in childhood, when he was given his first set of MPC dinosaur figures as a birthday present, and continues to the present day. Dinosaur Playsets: an Illustrated Guide to the Prehistoric Playsets of Marx and MPC is Jeff?s first book, and he hopes that aficionados of the dinosaurs of Marx, MPC, and related companies will find it a useful tool in their own collecting passions.