John Chrastka Books

Winning elections and influencing politicians for library funding

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Funding for libraries cannot be left to chance. Librarians, library trustees and Friends groups must be willing to play the game, focusing on strategies that include educating the community and mot...

Before the Ballot

By Patrick Sweeney, John Chrastka

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Before the Ballot

By Patrick PC Sweeney, John Chrastka

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Library Funding 2 Book Bundle

By Patrick PC Sweeney, John Chrastka

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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.