Julie K. Lundgren Books

Butterflies and moths

By Julie K. Lundgren

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Describes the life cycles, habitat, and unique characteristics of butterflies and moths.

Frogs and toads

By Julie K. Lundgren

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Squirrels

By Julie K. Lundgren

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Takes the reader on an interesting journey through the life cycle of the squirrel.

Chickens

By Julie K. Lundgren

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Presents general information about chickens, why people raise them, some of the various breeds, and how they grow from fertilized eggs to mature birds.

Squirrels

By Julie K. Lundgren

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Takes the reader on an interesting journey through the life cycle of the squirrel.

Butterflies and moths

By Julie K. Lundgren

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Describes the life cycles, habitat, and unique characteristics of butterflies and moths.

Apple trees and the seasons

By Julie K. Lundgren

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Presents the seasons through the ways apple trees grow and change over the course of a year.

How ecosystems work

By Julie K. Lundgren

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Introduces characteristics of animal ecosystems.

Reproduction in plants

By Julie K. Lundgren

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The life cycle of a plant is explained as well as how different plants use different ways to reproduce, how the different parts of a plant play a role in how it receives the nutrients it needs to s...

I look like my mother

By Julie K. Lundgren

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Illustrates the types of traits and characteristics you enherit from your parents through genetics.

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.