Comprehensive and recommended books. Students of mentioned classes will find it useful. These books are a necessary part of the student's preparation. There is ML Aggarwal class X mathematics, which is considered as an integral part while preparing for icse maths. Then there is concise physics - the most recommended book by the council for icse physics. There is dalal chemistry for class X - students find it extremely useful while preparing for chemistry as the book is really to the point and excellent for understanding. In computer application, there is APC publication class X icse computer - the most recommended book for computer by icse teachers. There are few more for class X. Now coming to class XI, there Nootan ISC physics for class XI - though might not be the first choice for students of class XI for understanding physics, but the isc nootan class XI physics is excellent in solved examples. Various types of numericals and comprehensive questions are there which ensures both the practice and conceptual understanding of students - as physics is a subject which requires strong understanding of both theory and practice questions (numericals, etc.) besides , there are jee main pyqs given so that students can get a feel of competitive type questions. (Note - the book is mainly for boards) Similarly, there is also Nootan ISC Chemistry for class XI , explanations are really detailed - nothing missing here - students will find it beneficial. Also there are sample ncert problems and examples , starting from easy to tough level. The students who face problem in physical chemistry will find the examples given here very useful. The organic reaction mechanisms are well explained, along with good and simple examples. What is also a great plus point in this book is that, after each chapter, there is a summary given - covering everything but in a concise manner - perfect for review and revision, or even when the student wants to go through the concepts real quick.