Tomoko Hayakawa Books

The Wallflower 2

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THE SPIRIT OF A LADYFour fabulous guys must completely transform a high school girl if they want to keep living rent-free in her aunt’s luxurious mansion. But Sunako Nakahara, the most fashio...

The Wallflower 3

By Tomoko Hayakawa

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A BEAUTIFUL MIND...MAYBEA fabulous foursome of gorgeous guys may live in a magnificent mansion for free, but only if they can turn Sunako, the horror-movie-obsessed, fashion-illiterate niece of the...

The Wallflower 4

By Tomoko Hayakawa

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A BACHELORETTE WITH BANGSFour gorgeous yet determined guys are still struggling to turn their reluctant, homely housemate Sunako into a proper lady. So far, the dreamy quartet have miraculously man...

The Wallflower 5

By Tomoko Hayakawa

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MEET THE PARENTSSunako Nakahara and her four handsome housemates are enjoying their glamorous lifestyle at her aunt’s mansion—until Sunako’s father makes a surprise appearance. Af...

The Wallflower 7

By Tomoko Hayakawa

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PAPA? MAMA?Four of Japan’s hottest guys are doing their best in their mission to turn dark, macabre Sunako into a dainty young woman. Gorgeous Ranmaru is famous for his smooth way with the la...

The Wallflower 8

By Tomoko Hayakawa

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THE GHOULISH GRANNYFour of Japan’s most gorgeous guys have the near-impossible task of turning goth-loner Sunako into a lady. When they find Sunako all dressed up and ready for a night on the...

The Wallflower 11

By Tomoko Hayakawa

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A DATE WORSE THAN DEATHDetermined to turn goth loner Sunako into a real lady, and frustrated by their lack of progress, the guys persuade a reluctant Kyohei to take Sunako out on her first date. No...

The Wallflower 14

By Tomoko Hayakawa

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STORMY WEATHERWhen a sudden storm traps goth chick Sunako and super-hot Kyohei in the basement, Sunako is ecstatic. Not because she can use the opportunity to get closer to such a cute guy, but bec...

The Wallflower 15

By Tomoko Hayakawa

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REMEMBER ME?It may be hard to believe, but Sunako was once a typical junior high school girl. She hung out with her girlfriends and talked about boys. But when the guy she had a crush on told her s...

The Wallflower 16

By Tomoko Hayakawa

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A LADY AT LAST?The four hottest boys in Japan have just one goal: Turn the goth-girl Sunako into a true lady. And suddenly they’re making progress! First, Sunako ventures out on a shopping tr...

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.