D.V.L. Spencer Books

Yaoi Hentai Volume 4

By Chris White, M.A. Sambre, D.V.L. Spencer, Yishan Studio, August Li, Donna Barr, Yamila Abraham

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The hit series continues! Volume 4 of the sexiest yaoi anthology going brings in all new talent, including famous comic creator Donna Barr! Stories include a nobleman succumbing to pleasure in th...

Yaoi Volume 1

By Sean Michael Wilson, Misa Izanaki, Studio Kosaru, D.V.L. Spencer, Amelia Woo, Yishan Studio

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A brand new anthology series of guys in love with guys. First, prisoners of a medieval circus unite against their wicked ringmaster. Then a tale of forbidden love between members of two rival gangs...

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.