This book acts as a field-guide for human cells. The book's unique structure first separates cells by what makes them distinctive, and then examines the essential "tools and parts" needed for both the cells' specialized function, and also the basic mechanisms that are shared with most other cells. The chapters highlight interactions between multiple cell types, exploring areas such as immunology and cancer to exemplify the complex coordination of cells, as well as the manipulation of normal cell interactions.   This book works as a companion reference for an academic text in cell and molecular science, and will be of general interest to anyone who wants to learn more about how cells work and interact.