This textbook gives an insight into the importance of cell migration in health during development, wound healing and immune responses as well as in disease with particular focus on cancer. The reader will learn about the different ways cells migrate to allow cellular changes during development to occur, as well as responses to injury and threat by foreign invaders. Cell migration is a driver of invasion and ultimately metastasis in cancer and as such we will give examples from highly aggressive cancer such as brain tumours. The book also includes an introduction to mathematical modelling to predict cell migration, information on the development of software for analysis of data generated in 2D and 3D as well as recent developments in the investigations into cell migration using 3D bioprinting. This textbook will be a great learning tool for advanced undergraduate students and Master students with the relevant science degrees such as in cell biology, developmental biology, cancer research, and tumour biology.