All In one book for master in mathematics wonderful for BOARDS mains and basic concepts.If this book is not maid I think nobody now a days would so easily grabing the mathe concepts so easilt and fluently.One of the best thing about this book is its GREART EXAMPLES. One can easily understand even the tuff concepts of the maths by just going thrugh the exemples. If anybody have no time for the whole revision he of she may do a quick revision by just having the examples.I don’t think R.D. Sharma books are a good source to prepare for JEE. These types of books are good from CBSE point of view, moreover these books would help in strengthening your basic concepts. For high level problems which are generally asked in JEE.This book is based on the latest syllabus as shown by the cbse The whole syllabus has beendivided into many parts so that the student do not feel any burden on having the book and feel bore while studing the book. the revised edision of the book involves relations functions binary operations inverse trignomertry . all the chapters are throughly revised and are good enough for a better study of a student in the daily life.let me tell you something about the author Dr. rd sharma is currently working as head of deptt. under the direction of technical education delhi he is a double gold medalist ranking first in the university ofrajasthan jaipur. He has gone thru rigirous traning from iitk. in computer based mathe programme he is having a good experience in teaching and training the young minds.hence I would strongly recommend you to have this book go for a good state of mind while reading this book and suddenly you will find that your maths is improving in a very easy and smooth way.