Portal Books Books

Chrysalis

By Portal Books, R.P. Jones

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Hellbound

By Oliver Mayes, Portal Books

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Black Sand Baron

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The manhunt has officially begun. Now the target of a game-wide Holy War, Ned is forced to flee the Onyx Sands. The odds are stacked against him; Tyrann has tens of thousands of followers, a reli...

The Shadow Sect

By Peter Hackshaw, Portal Books

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Rise to Glory

By Portal Books, Alex Knight

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Reborn A Cultivation LitRPG Series

By D.I. Freed, Portal Books

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Gilded Ghost

By Portal Books, Kyle Kirrin

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The race to claim the Worldbranch Throne has begun. Now the site of EBO’s first completed Red Cathedral, the Onyx Delta has become the center of the virtual world, and the entire player base is de...

Azarinth Healer

By Rhaegar, Portal Books

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Dear Spellbook Volume 1

By Portal Books, Peter J Lee

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Warden Nova Online

By Portal Books, Alex Knight

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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.