Wendy Pfeffer Books

Marta's magnets

Average: 0.00, 0 Ratings

Marta's sister Rosa calls her magnet collection junk, but Marta's magnets help her make friends in her new home and help her retrieve a lost key for Rosa's new friend.

Marta's magnets

By Wendy Pfeffer

Average: 0.00, 0 Ratings

Marta's sister Rosa calls her magnet collection junk, but Marta's magnets help her make friends in her new home and help her retrieve a lost key for Rosa's new friend.

Snowy owls

By Wendy Pfeffer

Average: 0.00, 0 Ratings

Describes the life cycle of this creature of the far north.

Mute swans

By Wendy Pfeffer

Average: 0.00, 0 Ratings

Discuses the characteristics and life cycle of the Mute Swan.

Polar bears

By Wendy Pfeffer

Average: 0.00, 0 Ratings

The life cycle and physical characteristics of the polar bear.

Popcorn Park Zoo

By Wendy Pfeffer

Average: 0.00, 0 Ratings

Describes the Popcorn Park Zoo in New Jersey, which rescues and cares for animals that are sick, old, abused, or about to be destroyed.

Mallard duck at Meadow View Pond

By Wendy Pfeffer

Average: 0.00, 0 Ratings

A young mallard duck grows to maturity under the care of his mother, avoiding predators and learning how to fly.

Firefly at Stony Brook Farm

By Wendy Pfeffer

Average: 0.00, 0 Ratings

Firefly emerges from the ground as an adult and explores the summer night sky, avoiding predators, being caught and released by a little girl, and finding a mate.

Firefly at Stony Brook Farm

By Wendy Pfeffer

Average: 0.00, 0 Ratings

Firefly emerges from the ground as an adult and explores the summer night sky, avoiding predators, being caught and released by a little girl, and finding a mate.

Mysterious spinners

By Wendy Pfeffer

Average: 0.00, 0 Ratings

Relates the legend of how silk was discovered by a young empress in ancient China. Also includes facts about silk and the life cycle of the silkworm.

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.