Jake Humphrey Books

Hero Laughs While Walking the Path of Vengeance a Second Time Vol. 6 light Novel

By Jake Humphrey, Nero Kizuka

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Astrea Record Vol. 1 Is It Wrong to Try to Pick up Girls in a Dungeon Tales of Heroes

By Fujino Omori, Jake Humphrey, Kakage

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Astrea Record Vol. 2 Is It Wrong to Try to Pick up Girls in a Dungeon Tales of Heroes

By Fujino Omori, Jake Humphrey, Kakage

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Astrea Record

By Fujino Omori, Jake Humphrey, Kakage

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The Playbook

By Jake Humphrey

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Reach for the stars with this step-by-step guide to achieving your highest possible performance. In this handbook, Jake Humphrey and the High Performance team build a blueprint for unlocking young...

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.