Integument system -- Lymphatic system -- Assessment 1 --Respiratory system -- Cardiovascular system -- Assessment 2 -- Gastrointestinal system (oral) -- Gastrointestinal system (mesentery) -- Assessment 3 -- Urinary system -- Endocrine system -- Assessment 4 -- Male Reproductive system -- Female Reproductive system -- Assessment 5 -- Sensory organ --Assessment 6

Upon my retirement, I would like to share my knowledge andexperience on Histology which I have lectured my second year medicalstudents in the department of Anatomy, Faculty of medicine, ChulalongkornUniversity for more than 30 years. This is my second English edition that Ihave edited for my medical students without getting any profit. This E-book on Histology in organ-systems has 11 chapters. Its’ contents consist of briefly reviewing on texts, more than 500 full-colored oversized photomicrographs for use in the histology laboratory including selfassessment section for each chapter (10 items) for identification of tissues and organs with answers afterwards. I always welcome comments, suggestions and constructive criticism of this Ebook. These may be addressed at Department of anatomy, Faculty of medicine, Chulalongkorn University.