The interest for crystallization processes based on membrane technology has steadily increased over recent years. This has primarily been driven by the unique opportunity such processes provide to control supersaturation rates and the influence they exert on the nucleation stage through a proper regulation of morphological and chemico-physical properties of the membranes. Membrane-Assisted Crystallization Technology covers the fundamentals and applied aspects of membrane crystallization; materials, transport phenomena, operational design and crystalline products properties, including the relation to other traditional crystallization formats, are analyzed in detail. Advantages, limitations, and future developments in the logic of process intensification are also discussed, with special emphasis placed on the new fields of applications like solid recovery from brines in water desalination, controlled crystallization of proteins, polymorphism selection of active pharmaceutical ingredients, and regulated co-crystallization of organic materials.