Carl Mehling Books

Prehistoric creatures of the sea and skies

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Discusses the physical characteristics, behavior, diet, and fossil evidence of twenty-five prehistoric animals that lived in the sea and sky, including archaeopteryx, quetzalcoatlus, and pteranodon.

Armored dinosaurs

By Carl Mehling

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With the help of fossil evidence this book provides physical descriptions of armored dinosaurs.

Dinosaurs and Other Prehistoric Animals

By Carl Mehling

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La enciclopedia de los Dinosaurios

By SEVEN SERVICIOS EDITORIALES, Carl Mehling

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Horned Spiked and Crested Dinosaurs

By Carl Mehling

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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.