Carol Sulcoski Books

Lace yarn studio

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Contains projects from hats and mittens to scarves, wraps, and even sweaters and afghans. "Knitters who think lace-weight yarn is difficult to work with or only for old-fashioned shawls are in for...

Self striping yarn studio

By Carol Sulcoski

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Carol Sulcoski's latest book begins with a comprehensive technical section that explains how to use and manipulate self-striping yarn--something no previous pattern collection has offered. After re...

Knit So Fine

By Lisa Myers, Laura Grutzeck, Carol Sulcoski, Lisa R. Myers

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Knitting ephemera

By Carol Sulcoski

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"Did you know that knitting burns 102 calories per hour? Or that November is national Knit a Sweater month? Or that there are more sheep than people in New Zealand, Australia, and Iceland? These fu...

Sock yarn studio

By Carol Sulcoski

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Yarn Substitution Made Easy

By Carol J. Sulcoski

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Knitting socks with handpainted yarn

By Carol Sulcoski

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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.