This is a line of 200 page squared math books. Some people simply like squares. Among these are architects, accountants, those drawing in grids and anyone doing calculations of any sort. The Math line is made using 80 gsm ph7 neutral 100% acid free creamish beige ultra smooth top quality writing paper. This book offers twice the number of pages as compared with the Amateur line, however the pages have squares. A small top and bottom margin is provided. The Brahma Book is hand crafted using the finest materials and workmanship. The best quality binding materials are used to make the book very hardy. The book is designed to be light and compact to carry easily. Each book has a pocket inside the back cover.