Divay Gupta Books

The vanishing stepwells of India

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"Some of the most stunning architectural structures in India are to be found below ground: these are its stepwells, ancient water stores. Stepwells are unique to India and from around the 3rd cent...

Vanishing Stepwells of India

By Divay Gupta, Victoria Lautman

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Momentous Journey

By Divay Gupta, Krittika Bhattacharjee, Roshiba Khan, Vijaya Amujure, Intach Architectural Heritage Division

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.