Fred Winkowski Books

Stepbrother Sabotage

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Nine-year-old Josh finds it impossible to get along with his rambunctious eight-year-old stepbrother Jake, until an impending change in their family unites them on a common front.

Play by play

By Fred Winkowski

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Hink Pink Monsters

By Mike Thaler, Fred Winkowski

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Hyperspace

By Fred Winkowski, David A. Adler

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Einstein Anderson makes up for lost time

By Seymour Simon

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Einstein Anderson uses his scientific knowledge to solve a variety of puzzles, including a snake that chases people and a machine that can stop hurricanes.

Hyperspace!

By David A. Adler

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Includes facts, puzzles, riddles, brain teasers, and games about the sun, stars, planets, and other aspects of outer space.

Trams

By Frank Sullivan, Fred Winkowski

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A quiet walk in Central Park

By Fred Winkowski

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A Quiet Walk on the Beach

By Fred Winkowski, Fredric Winkowski

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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.