Today I want to say something about the S Chand Publication book this book is so useful to that is student that that try to understand many concepts and the money and learn everything about the chapter and introduction which is given in the science book in the Mathematics book in many subject because I love with that s Chand Publication books in this book he he clear all the my concept that I want to from this book and I am now in the my 10th in the in standard and I want to say that this book is very useful to all the student that completing his 10th classes 9th classes and other so many classes that I suggest that if you want any Foundation book so this book is useful to you that I suggest you to join this book to buy this book this book is written by lakhmir Singh and Manjit Kaur