Many workers coming to the field of colloids for the first time find the current advances too daunting for them to attempt to apply these ideas to their own systems. By the nature of the subject, some areas are necessarily complex, but when this occurs the text includes a calculation strategy so that the reader can judge the depth required for the application under study. Many commercial systems are complex mixtures but in most cases the basic rules apply and surprises only occur when there is a quite specific interaction present. Hence, by using this text, the user will always have the fundamentals readily to hand. This book summarizes such fundamentals in an accessible fashion and is relevant for undergraduate courses on chemistry, chemical engineering, physics, materials science or pharmaceutics.