The present publication in two volumes is based on years of experience in the field of teaching and research in Endorcrnology, represents and attempt to provide students the basic concepts along with the latest developments in the field. The publication is a detailed introduction to the fundamental ideas of the histophysiological aspects of mammalian endocrine glands and encompasses the relevant description of the endocrine glands and encompasses the relevant description of the endocrine glands with well labelled illustrations. The publications includes Pituitary glands, Neurohypophysis, Thyroid glands, Parathyroid glands, Adrenal glands, Reproductive hormones and Parcreas etc.