THE BOOK WRITTEN BY MR HC VERMA IS VERY GOOD . THE CONCEPTS OF PHYSICS DESCRIBED IN THIS BOOK IS IN A VERY SIMPLE WAY BUT THE QUALITY OF CONCEPTS IN THIS BOOK QUIT HIGH . IT IS PRESCRIBE BY VARIOUS PHYSICIAN TO STUDENT WHICH ARE INTERESTED IN PHYSICS AND WANT TO CLEAR JEE-MAINS/ADVANCE.IN THIS BOOK THE CONCEPT ARE DESCRIBED IN SUCH A WAY THAT READER EASILY CAN UNDERSTAND THE LANGUAGE AND QUIT ABLE TO FIGHT MANY COMPETITIVE EXAMS.THE PRICE OF THIS BOOK IS VERY AFFORDABLE ONLY 400/-RS. AND I RECOMMENDE YOU TO BUY THIS BOOK.