Studio Kosaru Books

Pinned!

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Cruiserweight wrestler Synn couldn't believe how lucky he was to be recruited by the number one wrestling promotion in North America. Especially when his hero from childhood — the champion Renegade...

Enslaved By The Dragon (Yaoi) (Yaoi Manga)

By Yishan Li, Studio Kosaru, Laila Reimoz

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The street punk Noah made the mistake of pick-pocketing a crime lord right before he had a meeting with an embassy official. When crime lord Tokihiko can't produce his identification he misses the...

Yaoi Hentai Volume 2

By Moon Yen, Yamila Abraham, Studio Kosaru, Yishan Studios

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Yaoi Hentai is back with a whole new volume of romantic yaoi smut. All new artists bring you four hot stories of hardcore guy on guy loving. First, an Elizabethan dandy is cursed to be the love sla...

Surge

By Kyle Green, Studio Kosaru

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The gorgeous surfer Shawn needs to pass marine biology or else he'll flunk out of college. Luckily for him, the cute nerd Alan is dying to learn how to surf. The two are brought into each others' w...

Yaoi Hentai, Volume 1

By Anna Hollingsworth, Tina Anderson, Yamila Abraham, Studio Kosaru, Laila Reimoz

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This is yaoi at its most extreme: graphic scenes of loving between a college professor and his student, a bar-hopper and some thugs who kidnap him, members of a corrupt soccer team, and a tentacle...

Zesty! Volume 2 (Yaoi)

By Margot Redding, Studio Kosaru, Margot Redding, Studio Kosaru

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/type/text It’s chaos in Zestyland! Zesty flees to the country his dad bought him to escape his beloved ninja agent Prince. Prince wants to let him go, but the sect is threatening to send the nas...

Yaoi Hentai Volume 3

By Yamila Abraham, Studio Kosaru, Yishan Studios, Laila Reimoz

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In Volume 3 of the ultra popular, kinky, sex-full Yaoi Hentai, you'll see tentacle monster Trach nailing an unsuspecting bus rider, a poor bishonen with his wiener caught in a fence hole and the p...

Yaoi Volume 1: Anthology Of Boys Love

By Yishan Studio, Wilson, SPENCER, D. V. L. Spencer, D.V.L. Spencer, Amelia Woo, Sean Michael, Misá, Misa Izanaki, Studio Kosaru, Sean Michael Wilson, Yishan Studio (Firm), D.V.L., Izanaki, Ameila Woo, Studio Kosaru (Firm)

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Yaoi anthology of three heart wrenching love stories. First theres romance between prisoners of a medieval circus, then between members of rival Tokyo gangs, and finally, between a cop and a young...

Winter Demon Bundle

By Rhea Silvan, Yamila Abraham, Studio Kosaru, Le Peruggine

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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.