The Advanced Problems in Mathematics for JEE (Main & Advanced) by Vikas Gupta and Pankaj Joshi, published by Shri Balaji Publications, is a comprehensive and highly regarded resource for students preparing for one of India's most competitive engineering entrance examinations. Now in its 12th Edition (2026), this book ? popularly known as the 'Black Book' ? has been a trusted companion for JEE aspirants across the country. It covers a wide range of advanced mathematical concepts and problem types, carefully curated to match the difficulty level and pattern of both JEE Main and JEE Advanced.