Highest Priced College TextbooksActa Philosophorum The First Journal of Philosophy: $1,450Encyclopedia of International Media and Communications: $1,215Management Science An Anthology: $850History of Early Film: $740Biostatistical Genetics and Genetic Epidemiology: $665Companion Encyclopedia of Psychology: $600Feminism and Politics: $600Concepts and Design of Chemical Reactors: $593Advanced Semiconductor and Organic Nano-Techniques: $570Ethics in Business and Economics: $550Environment in the New Global Economy: $510Solid State Chemistry and Its Applications: $500Why are these books pricier than others? " In general some books are more expensive because of the research involved and limited number of copies used in the market place," observes Bobby Brannigan, CEO and founder of Valore Books, who started selling used textbooks when he was in college in the early 2000's.I think most students know that the best way to find cheap college textbooks is to buy online. At Valore Books, for instance, you can buy Acta Philosophorum for $184. What's surprising, however, is that only 23% of students buy their college textbooks online.