Thomas B. Kohnstamm Books

Do Travel Writers Go to Hell?

By Thomas B. Kohnstamm, Thomas Kohnstamm

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For those who think that travel guidebooks are the gospel truth. WANTED: Travel Writer for Brazil QUALIFICATIONS REQUIRED Decisiveness: the ability to desert your entire previous life–including...

Costa Rican Spanish

By Lonely Planet Phrasebooks, Thomas Kohnstamm

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Costa Rica Spanish phrasebook

By Thomas B. Kohnstamm

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Do Travel Writers Go to Hell?

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For those who think that travel guidebooks are the gospel truth. WANTED: Travel Writer for Brazil QUALIFICATIONS REQUIRED Decisiveness: the ability to desert your entire previous life–including...

Lake City

By Thomas Kohnstamm

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“Lake City is a darkly funny and extremely relevant debut novel about American inequality and moral authority, featuring a sad–sack antihero who takes way too long to grow up. When he f...

Lonely Planet Venezuela

By Thomas Kohnstamm, Sandra Bao, Beth Kohn, Jens Porup, Daniel Schechter

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Costa Rican Spanish Phrasebook Lonely Planet Phrasebook Costa Rican Spanish

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Costa Rican Spanish phrasebook dictionary

By Thomas B. Kohnstamm, Jenna Myers

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Lake City

By Thomas Kohnstamm

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“Lake City is a darkly funny and extremely relevant debut novel about American inequality and moral authority, featuring a sad–sack antihero who takes way too long to grow up. When he f...

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.