Heather Martinez Books

JELLYFISHING

By Cynthia Hands

Average: 0.00, 0 Ratings

Albert

By Heather Martinez, Will Eisenberg, Aaron Eisenberg

Average: 0.00, 0 Ratings

Lettering Journey

By Avril Orloff, Heather Leavitt Martinez, Guido Neuland

Average: 0.00, 0 Ratings

Ice cream dreams

By Nancy E. Krulik

Average: 0.00, 0 Ratings

SpongeBob has always dreamed of becoming the manager of the Krusty Krab. When Squidward gets the job instead, there is only one thing for SpongeBob to do -- head to Gooffy Goober's Party Boat and d...

The Golden Gecko

By Heather Martinez, Melissa Lagonegro

Average: 0.00, 0 Ratings

How To Draw Spongebob Squarepants

Average: 0.00, 0 Ratings

The Big Halloween Scare

By Heather Martinez, Steven Banks

Average: 0.00, 0 Ratings

How to draw SpongeBob SquarePants, Nickelodeon

By Heather Martinez

Average: 0.00, 0 Ratings

How to Draw Spongebob Squarepants

Average: 0.00, 0 Ratings

How to Draw SpongeBob SquarePants Drawing Book and Kit

By Walter Foster Firm, Heather Martinez

Average: 0.00, 0 Ratings

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.