Yuu Morikawa Books

Mr. Villain's Day Off 041

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A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 040

By Yuu Morikawa

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A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 039

By Yuu Morikawa

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A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 038

By Yuu Morikawa

Average: 0.00, 0 Ratings

A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 037

By Yuu Morikawa

Average: 0.00, 0 Ratings

A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 036

By Yuu Morikawa

Average: 0.00, 0 Ratings

A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 035

By Yuu Morikawa

Average: 0.00, 0 Ratings

A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 034

By Yuu Morikawa

Average: 0.00, 0 Ratings

A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 033

By Yuu Morikawa

Average: 0.00, 0 Ratings

A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

Mr. Villain's Day Off 032

By Yuu Morikawa

Average: 0.00, 0 Ratings

A comedic manga about the unexpected ways an “evil” alien spends his days off.An Evil Organization from another planet is trying to take over Earth. An extraterrestrial from that organi...

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.