Josh Tierney Books

Ascension of the starless

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The Starless Queen is plotting an invasion of Spera, and has sent the merciless General Zeal to secure its capital. Unfortunately for her, the Queen's obsession with killing Princesses Pira and Lon...

Spera Ascension of the starless

By Josh Tierney

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Vincent is a shipwrecked privateer who has lost his crew to winged monsters. Aya is an orphan seeking revenge on the Starless army who killed her family. Through a series of unlikely coincidences,...

Spera

By Josh Tierney

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Spera

By Josh Tierney

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World Piece Vol. 1

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Adventure time

By Josh Tierney

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Collects the adventures of such Land of Ooo residents as Finn the Human, Jake the Dog, Cinnamon Bun, Princess Bubblegum, and Marceline the Vampire Queen.

Warm Blood Vol. 1

By Josh Tierney, Afu Chan

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Spera

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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.