Sylvia A. Johnson Books

Describes the development of the potato, including information on planting seed potatoes, sprouting, the growth of the plant and its underground tubers, and the role played by tubers in the life of...

Wasps

By Sylvia A. Johnson

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A description of those wasps which are social insects, discussing their nest building, egg laying, metamorphic development, and life in their colony.

Bats

By Sylvia A. Johnson

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Describes the varied characteristics and habits of bats and the importance of their roles as pollinators and seed dispersers.

Morning glories

By Sylvia A. Johnson

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Examines the lives of morning glories and the stages of development leading to the production of their delicate flowers.

Rice

By Sylvia A. Johnson

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An introduction to rice, a member of the grass family, discussing how it is grown and cultivated as a primary food crop for one half of the world's peoples. Includes a glossary of terms.

Tree frogs

By Sylvia A. Johnson

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Describes different kinds of tree frogs and the way in which they live.

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.