David E Schultz Books

Valuation Of Psychiatric Services

By David E. Schultz, David E Schultz, David E. Schultz (M.D.)

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x, 73, [51] p. : 22 cm Includes: Universal managed care contract for psychiatric medical services between managed care organization and psychiatric services provider / [Richard W.S. Pershing, princ...

Letters To Family And Family Friends, Volume 2: 1926-⁠1936

By H P Lovecraft, H.P. Lovecraft, David E Schultz, S T Joshi

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As This Volume Opens, We See H. P. Lovecraft In Desperate Straits, Stuck In New York City, A City He Had Come To Loathe, And In A Marriage That Was Failing By The Day. His Aunt Lillian D. Clark Ext...

Fungi From Yuggoth

By H P Lovecraft, H.P. Lovecraft, David E Schultz

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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.