Obi Onyefulu Books

Wild Babies

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Describes the various parenting techniques of different types of wild animals and provides a close look at the behavior and characteristics of their offspring.

First Flight

By George Shea

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A twelve-year-old boy named Tom Tate meets Orville and Wilbur Wright and witnesses the invention of the airplane in Kitty Hawk, North Carolina, in 1903.

First Flight: The Story of Tom Tate and the Wright Brothers

By George Shea

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Miss Rumphius

By Barbara Cooney

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Alice made a promise to make the world a more beautiful place, then a seed of an idea is planted and blossoms into a beautiful plan. This beloved classic and celebration of nature—written by a bel...

Read Write Inc. Comprehension: Module 14: Children's Books: Chinye Pack of 5 books

By Obi Onyefulu

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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.