Lambert Mark Books

The plant world

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Text, illustrations, and reference sections provide an account of the earth's plant life, ranging from single-celled algae to the giant redwoods.

A history of transportation, from chariots to rockets and hydrofoils, stressing how the application of scientific principles facilitated the evolution of more sophisticated transport. Includes refe...

Living things

By Lambert Mark

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Examines the world of living things by discussing the characteristics, evolution, life cycles, and reproduction of plants and animals.

The lungs and breathing

By Lambert Mark

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Describes the organs of the respiratory system and their functions and discusses the consequences of disease and prolonged abuse on this vital system.

The brain and nervous system

By Lambert Mark

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Compares the human brain to that of other animals, presents historic notions about the brain from prehistoric headhunting to the scientific age, explains how the brain and nervous system function,...

Rainbow prehistoric life encyclopedia

By Lambert Mark

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A comprehensive presentation of early animals and their evolution and of the predecessors of modern man.

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.