Renzo Barto Books

How to Draw Cartoon Characters How to Draw

By Barto

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How to draw monsters, weirdoes & aliens

By Renzo Barto

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Instructions for drawing a variety of scary creatures, accompanied by black and white line drawings.

How to draw cartoon characters

By Renzo Barto

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Instructions for drawing a variety of human figures and animals in cartoon style, accompanied by black and white line drawings.

Happy Thanksgiving

By Judith Conaway

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Provides instructions for making Indian cutouts, place mats, Indian cornbread, and other Thanksgiving decorations and foods, as well as descriptions of two games.

Detective tricks you can do

By Judith Conaway

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Follows two young detectives through an investigation and introduces such tricks and techniques as mirror writing, codes, invisible ink, fingerprinting, and other tools of the trade.

Great gifts to make

By Judith Conaway

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Instructions for a variety of gifts one can make at home or school. Includes back scratcher, mud scraper, memory book, picture frame, miniature racing cars, jewelry, and toys.

How To Draw Cartoons Characters

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Dia De San Valentin

By Robyn Supraner

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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.