Adam Gamble Books

Count To Sleep St. Louis

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Count to Sleep St. Louis features the Gateway Arch, Forest Park, Museum of Transportation, Grant's Farm, St. Louis Zoo, local sports teams, the Mississippi River, local foods, and more. Counting th...

Count to Sleep Washington, DC

By Adam Gamble Mark Jasper

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Count to Sleep Washington DC features the National Mall, Potomac River, Smithsonian museums, White House, Supreme Court, Capitol Building, and many of Washington DC’s monuments. This charming...

Good Night Pirate Ship

By Adam Gamble Mark Jasper

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Arrrr! Come plunder the seas with swashbuckling pirates in search of riches. This colorful board book explores the exciting life of pirates, including treasure chests, pieces of 8, gold doubloons,...

Good Night Pirate Ship

By Adam Gamble Mark Jasper

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Good Night Pirate Ship explores treasure chests, pieces of 8, gold doubloons, pirate flags, cannons and cannonballs, swords, spyglasses, Spanish forts, pirate clothing, pirate foods, the Caribbean,...

Good Night Alabama

By Adam Gamble Mark Jasper

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Good Night Alabama includes the Crimson Tide, Birmingham Zoo, the Talladega Superspeedway, International Motorsports Hall of Fame, McWane Science Center, State Capitol Building, US Space & Rocket C...

Good Night Mississippi

By Adam Gamble Mark Jasper

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Good Night Mississippi features local foods, paddleboats, Mississippi Children’s Museum, Mississippi Museum of Natural Science, Vicksburg National Military Park, Jackson Zoo, college sports t...

Good Night Princesses

By Adam Gamble Mark Jasper

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Good Night Princesses features magic carpets, human and mermaid princesses, castles, jewels, gowns, magic mirrors, mystical dragons, royal tea parties, birthday balls, chariots, and even a few hand...

Good Night Mermaids

By Adam Gamble Mark Jasper

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Dive into the magical sea and discover the enchanted world of Mermaids. The perfect adventure for all ages, ride with dolphins, swim with seahorses, dress up with seashells and so much more! T...

Good Night Puppies

By Adam Gamble Mark Jasper

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Good Night Puppies includes picking out puppy, playing ball, hide and seek, tug of war, feeding, puppy toys, bathing, walks, different breeds and sizes and colors, snuggling with puppy, bedtime, an...

Count to Sleep America

By Adam Gamble Mark Jasper

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Count to Sleep America features famous bridges, monuments, mountains, wildlife, redwood trees, American flags, buildings, farms animals, and more. Counting across America has never been so much fun...

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.