Robert Calkin and Nidus Productions are proud to present the new book: "Everything You Need To Know to Start Your Own Medical Marijuana Delivery Service in the State Of California." Based on the original curriculum Robert wrote for Oaksterdam University, this book is the definitive guide on the subject and provides a complete overview of the industry, including a step-by-step method on how to begin your own delivery service. Robert now teaches at Oaksterdam University along with many other higher learning centers.