David Bock M.S. Books

Offers advice on preparing for and taking the advanced placement examinations in calculus, including a diagnostic tool, a review of exam topics, and ten practice tests with answers for both the Cal...

Barron s AP calculus

By David E. Bock

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AP Calculus Premium

By Dennis Donovan, Shirley O. Hockett, David Bock

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AP Calculus Flashcards, Fourth Edition: Up-to-Date Review and Practice Sorting Ring for Custom Study

By David Bock, Barron S Educational Series

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Be prepared for exam day with Barron’s. Trusted content from AP experts!Barron’s AP Calculus Flashcards includes more than 400 up-to-date content review cards and practice questions. Written by Exp...

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.