The book "An introduction to Sociology" has been composed according to latest syllabus issued by the University of Kashmir for undergraduate courses. The book covers semester- I and II. The basic concepts of sociology and theories have been presented in very simple words. At the end of every chapter long and short questions have been produced with answers. This will help students to prepare for final examination also. In the thinker portion the main contributions of thinkers have been highlighted to make students familiar with the subject. This will also give them hold over the subject. In competitive exams UGC NET, SLET, and civil services a good number of questions are asked from thinker portion. This book will help students to get familiar with it. It will also help the students to prepare for Post Graduate entrance tests conducted by various institutions. The book will guide a good number of teachers teaching sociology in different colleges of Kashmir. It will be handy tool for thousands of students to clear basic concepts of sociology and get ready for examination.