It is my great pleasure to receive third edition of this book, within seven year of publication of its first edition. Text is presented in simple language and precise manner as the earlier edition new tables clinical application and Hints to the students have been added. In Hints to the students important points are given which are important in identifying the slide practically. Clinical application are given in precise manner which creates interest in students for histology, simple hand drawn line diagrams of microscopic structures of tissues and organs are included which help in basic understanding of histological structure. A large no. of new photo micrographs of tissues and organs are included in this edition, so this book also serve ass atlas. Those details which are essential for postgraduate students are printed separately under the heading "Further details". This text book of histology can be considered as good book for both undergraduate and postgraduate students of Medical School.