Full sewn binding, which ensures strength & the paper remains in good condition all round the year. Relevant & useful formulas & information provided on the inside pages. Practical experiment videos of TopScorer app by scanning the QR code provided inside the book cover. For learning practicals has become Smarter Certificate, Index, Log & Anti Log table, 8 pages Graph 1mm provided, also space for Page no., Date & Teacher’s signature have been provided on each ruling page. The book is enabling any screen printing on the front cover.