Tirins Allen and Graham Kaouling takes us on an amazing journey to the world of cells, the infrastructure of all living organisms. They review the amazing nature of the cells, from its primary composition to its various forms and complex interactions. They highlight the division and the distinction of cells, as well as the high -elastic stem cells and the dynamic cell death. Using modern techniques in microscopic examination and biochemistry, they offer the reader an interesting and comprehensive view of this strange small world, which is a basis for all areas of medicine and biology. Understanding cells and their work is a key key to exploring the depths and development of life.