"The White Confocal" is a specialized book that provides a comprehensive introduction to confocal microscopy, with a particular focus on spectral confocal microscopy. It begins with an introduction to optical lenses and offers guidance on compound microscopes while addressing related topics such as microscopic resolution. The book explains the fundamentals of fluorescence and its impact on microscopy. Another section is dedicated to confocal beam paths and the implementation of acousto-optical devices as well as modern sensor techniques. Complex relationships are explained in an understandable manner and supported by numerous graphical illustrations. It covers the principles of magnifying optics as well as the technical foundations and operating modes of modern laser scanning microscopes. This book is a valuable resource for students, laboratory technicians, and educators.