Jon L. Lellenberg Books

Irregular Crises of the Late Forties

By Jon L. Lellenberg

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Arthur Conan Doyle

By Daniel Stashower, Arthur Conan Doyle, Charles Foley, Jon Lellenberg

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Sherlock Holmes makes his American debut in this fascinating and extraordinary collection of never-before-published crime and mystery stories by bestselling American writers. The world's greatest d...

Sherlock Holmes in America

By Daniel Stashower, Jon L. Lellenberg, Martin H. Greenberg

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From the bustling neighborhoods of New York City and Washington, D.C., to sunny yet sinister cities like San Francisco on the West Coast, the world's best-loved British sleuth will face some of the...

Murder in Baker Street

By Jean Little, Daniel Stashower, Jon L. Lellenberg

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A collection of new stories featuring the famous detective by such writers as Anne Perry, Peter Tremayne, Jon L. Breen, and L.B. Greenwood.

Murder My Dear Watson

By Daniel Stashower, Jon L. Lellenberg, Martin H. Greenberg

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Baker Street irregular

By Jon L. Lellenberg

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"Baker Street Irregular is a mystery and espionage tale told by a member of a whimsical Sherlock Holmes club born in a speakeasy, as Woody Hazelbaker undergoes America's political struggles in the...

Sherlock Holmes in America

By Daniel Stashower, Jon L. Lellenberg, Martin H. Greenberg

Average: 0.00, 0 Ratings

Sherlock Holmes in America

By Daniel Stashower, Jon L. Lellenberg, Martin H. Greenberg

Average: 0.00, 0 Ratings

Sherlock Holmes in America

By Daniel Stashower, Jon L. Lellenberg, Martin H. Greenberg

Average: 0.00, 0 Ratings

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.