Mark Jasper Books

Count To Sleep California

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Count to Sleep California features the Pacific Ocean, Golden Gate Bridge, Hollywood, sea lions, Napa Valley, the Sierra Nevada Mountains, and Yosemite National Park in this counting book. Making ba...

Count To Sleep Florida

By Adam Gamble Mark Jasper

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Count to Sleep Florida includes the Atlantic Ocean and Gulf Coast, the Keys, Everglades, Miami, Orlando, orange groves, beaches, boating, tropical fish, and much more. Put on your sunglasses and le...

Count To Sleep Maine

By Adam Gamble Mark Jasper

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Count to Sleep Maine includes whales, seals, lobsters, bears, moose, blueberries, puffins, skiers, and lighthouses. Come count the great state of Maine. Children love counting their favorite sights...

Count To Sleep Massachusetts

By Adam Gamble Mark Jasper

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Count to Sleep Massachusetts includes Plymouth Rock, Cape Cod bridges, fishing boats, Fenway Park, swan boats, Old Sturbridge Village, Salem, lighthouses, and Tanglewood musicians. Counting the Bay...

Count To Sleep New Jersey

By Adam Gamble Mark Jasper

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Count to Sleep New Jersey feature the Jersey Shore, boardwalk, Steel Pier, Cape May, lighthouses, Asbury Park, New Jersey Turnpike, Fort Lee, and more. Come count the great state of New Jersey! Chi...

Count To Sleep New York City

By Adam Gamble Mark Jasper

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Count to Sleep New York City features the Statue of Liberty, hot dog stands, taxi cabs, Central Park, Broadway theaters, library lions, bridges, Rockefeller Center, and more. What could be more exc...

Count To Sleep Seattle

By Adam Gamble Mark Jasper

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Count to sleep Seattle features the Space Needle, Pikes Place Market, ferryboats, Mount Rainer, Museum of Flight, Woodland Park Zoo, Settle Aquarium, orcas, and  houseboats. Count your way thr...

Count To Sleep Yosemite

By Adam Gamble Mark Jasper

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Count to Sleep Yosemite features Half Dome, bears, park rangers, waterfalls, rock climbers, wildflowers giant sequoias, campers, and more. This adorable and educational book makes counting Yosemite...

Good Night Trains

By Adam Gamble Mark Jasper

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Good Night Trains highlights steam locomotives, freight trains, box cars, cog railroads, mine trains, subways, monorails, sleeper trains, high-speed trains, holiday trains, snow-plow trains, Christ...

Good Night Planes

By Adam Gamble Mark Jasper

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A day in the life of a pilot is full of discovery and adventure!Find out what it takes for an airplane to get ready for flight. Your toddler will discover what it’s like to be an airplane pil...

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.