J. M. Roever Books

Snake secrets

By J. M. Roever

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Discusses the behavior of snakes, how to dissect and study the internal organs, and how to keep snakes as pets.

Snake secrets

By J. M. Roever

Average: 0.00, 0 Ratings

Discusses the behavior of snakes, how to dissect and study the internal organs, and how to keep snakes as pets.

Rascally ringtails.

By J. M. Roever, Elizabeth Rice

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Describes the physical characteristics, habits, and boundless curiosity of three ringtails--the raccoon, the coati, and the cacomistle.

The whooping crane.

By J. M. Roever

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Describes the physical characteristics and life cycle of the whooping crane, a rare bird that was saved from extinction.

The mustangs

By J. M. Roever

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Describes the history, physical characteristics, and habits of mustangs, the wild horses that once roamed the western grasslands.

The black-footed ferret.

By J. M. Roever

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Describes the habits and behavior of an endangered species of American wildlife, the black-footed ferret, a member of the weasel family.

The North American eagles

By J. M. Roever

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Traces the importance of eagles in history, and legend, describes the characteristics, habits, and habitat of the bald and golden eagle, and explains why their existence is threatened.

Wolves

By J. M. Roever

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A simple introduction to the habits of wolves and their behavior in packs.

The brown pelican

By J. M. Roever

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Describes the appearance, behavior, life cycle, and ecological relationships of the brown pelican, now an endangered species.

Whales in danger

By J. M. Roever

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Describes the life cycle and environmental needs of the various species of whales and stresses man's continuing threat to their survival.

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.

J. M. Roever Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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