William E. Smiddy Books

Ophthalmology Review: A Case Study Approach

By Kuldev Singh, William E. Smiddy, Andrew G. Lee, Kuldev Singh, William E. Smiddy, And Andrew G. Lee

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A Practical, Case-based Manual For All Residents And Professionals, This New Book Covers Key Topics In Cornea And External Disease, Cataract, Glaucoma, Retina, Uveitis, Tumors, Neuro-ophthalmology,...

Diabetes and Ocular Disease

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Ophthalmology Review: A Case Study Approach

By Kuldev Singh, William E. Smiddy, Andrew G. Lee, Kuldev Singh, William E. Smiddy, And Andrew G. Lee, William E. Smiddy Kuldev Singh

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Diabetes and Ocular Disease: Past, Present, and Future Therapies: 14

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Ophthalmology Monographs

By Ingrid U. Scott

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Retinal surgery and ocular trauma

By William E. Smiddy

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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.