Practical Guide to Pathological and Histological Technology," designed for a wide range of scientific and practical workers (doctors, laboratory assistants) in contact with the preparation of pathological and histological preparations, has long been dispersed, and there is a need for a second edition of the book. While retaining the previous nature of the manual and seeking to ensure that it was at the same time sufficiently complete as a manual for day-to-day work, I considered it appropriate to make some additions.