Mariana Ruiz Johnson Books

Conejo y sombrero

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A rabbit goes out for a walk one day and comes upon a fabulous top hat. He's impressed with his discovery and marvels at his luck. But his surprise will be even greater when he decides to put his p...

I know a bear

By Mariana Ruiz Johnson

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Each time a girl visits a bear in a zoo, she listens to his tales of the vast and wondrous Land of the Bears, his home that he will never see again.

I know a bear

By Mariana Ruiz Johnson

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Each time a girl visits a bear in a zoo, she listens to his tales of the vast and wondrous Land of the Bears, his home that he will never see again.

Little Lift and Look Under the Sea

By Mariana Ruiz Johnson, Anna Milbourne

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While you are sleeping

By Mariana Ruiz Johnson

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In this story without words, a child is sleeping while outside people carry on with their lives--working, eating, walking their dogs, and even star gazing.

Head Shoulders Knees and Toes

By Skye Silver, Chris Mears, Mariana Ruiz Johnson

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Corre Pequeno Chaski

By Mariana Llanos, Mariana Ruiz Johnson

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Sparkle's song

By Hale Samantha Children S Fiction Writer

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"Sparkle's Aunt Millicent keeps a very quiet house, so when Sparkle hears beautiful music coming from deep in the forest she follows a songbird to find out why. What Sparkle discovers is something...

Sparkle s song

By Hale Samantha Children S Fiction Writer

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"Sparkle's Aunt Millicent keeps a very quiet house, so when Sparkle hears beautiful music coming from deep in the forest she follows a songbird to find out why. What Sparkle discovers is something...

J ai un ours

By Mariana Ruiz Johnson

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Each time a girl visits a bear in a zoo, she listens to his tales of the vast and wondrous Land of the Bears, his home that he will never see again.

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.