Famous American biologist, Nobel Prize winner Christian de Duve invites the reader to look into the amazing world of a living cell - the foundations of the animal and plant world. Together with the author of the book, acting as a guide, an enthusiastic high school student, biologist or physician, or just a reader who shows interest in the achievements of modern science, will make a difficult but exciting journey and discover a lot of new things in the field of cell biology. To a large extent, this is facilitated by numerous micrographs, color illustrations and diagrams.