Its very useful in understanding any chapter in short with timelines, summary, glossary...It's also have self assessment questions you can solve by yourself. It also has chapter syllabus in starting of any chapter which tell you what questions can come frome that chapter and it's also useful if you didn't have time to read that chapter, so you can just see the chapter syllabus questions in the front and only do that. It also has exam practice questions with answers after every chapter with marks just like a test of that particular chapter and also has questions with in which year that question is asked in 10th board. It also has check point with NCERT questions and exercises. At last it also has viva questions and PERIODIC ASSESSMENT USING MULTIPLE STRATEGIES. AT LAST IT ALSO GOT SOME SAMPLE PAPERS.