Crystallization is the (natural or artificial) process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas. Attributes of the resulting crystal depend largely on factors such as temperature, air pressure, and in the case of liquid crystals, time of fluid evaporation.

In the present book, twelve typical literatures about crystallization process published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on cooling crystallization, cooling crystallizers, evaporative crystallization, DTB crystallizer and protein crystallization, etc. We hope this book can demonstrate advances in crystallization process as well as give references to the researchers, students and other related people.