John Montroll Books

Origami for the Enthusiast: Step-By-Step Instructions in over 700 Diagrams

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Origami enthusiasts who have mastered the basic folds and seek advanced projects have found little to inspire and challenge them — until now. Origami for the Enthusiast presents 25 intricate paper...

Animal Origami for the Enthusiast: Step-by-Step Instructions in Over 900 Diagrams 25 Original Models

By John Montroll

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Origami Sculptures

By John Montroll

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Easy-to-follow instructions for creating paper models of a swan, walrus, dachshund, penguin, peacock, camel, rhinoceros, panda, and 16 other subjects. Every finished sculpture is shown in a photogr...

Prehistoric Origami

By John Montroll

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Over 1,200 clearly outlined folding instructions show how to create 20 paper models of world's most celebrated extinct animals — Tyrannosaurus, Stegosaurus, Triceratops, Iguanodon, 16 others — as w...

African Animals in Origami

By John Montroll

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Join origami expert John Montroll on a fascinating and fun-filled paper folding safari! Over 1,200 clear and easy-to-follow diagrams guide paper folders step-by-step in the creation of 24 African a...

Easy Origami

By John Montroll

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A collection of 32 projects for novice origami hobbyists, clearly illustrated with easy-to-follow instructions that even beginning papercrafters can follow with successful results. Subjects range f...

Origami Inside-Out

By John Montroll

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Birds in origami

By John Montroll

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With this handy guide from origami expert John Montroll you can learn to fold charming versions of a flock of favourite birds: swan, flamingo, duck, stork, goose, and other popular varieties—over a...

Favorite Animals in Origami

By John Montroll

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Lovers of the ancient Japanese art of paper folding will welcome this delightful collection of animal origami projects. Noted origami expert John Montroll provides more than 300 black-and-white dia...

Teach Yourself Origami

By John Montroll

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Both beginners and veteran folders will love this instructive volume and its clear directions and crisp diagrams. Readers learn the basic folds, one at a time, for 27 simple models (frog, star, pia...

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.