Carol A. Losi Books

Pizza pizzazz!

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Mario the Pizza Man uses outrageous toppings and his knowledge of fractions to make perfect pizzas that can be divided up. Includes related math activities.

512 Ants On Sullivan Street Scholastic Reader Collection Level 4

By Carol A. Losi

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Jpl Fractions de Pizza

By Losi Carol A.

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512 Fourmis sur la Rue Sansouci

By Carol A. Losi

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512 Ants on Sullivan Street

By Patrick Merrell, Carol A. Losi

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The 512 Ants on Sullivan Street

By Marilyn Burns, Patrick Merrell, Carol A. Losi

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Salt & Pepper at the Pike Place Market

By Carol A. Losi

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Two dogs that look identical, one who lives on a boat and one who is pampered in a penthouse apartment, get switched accidentally in Seattle's Pike Place Market.

Salt & Pepper at the Pike Place Market

By Carol A. Losi

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Two dogs that look identical, one who lives on a boat and one who is pampered in a penthouse apartment, get switched accidentally in Seattle's Pike Place Market.

Ao pi sa

By Carol A. Losi

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Mario the Pizza Man uses outrageous toppings and his knowledge of fractions to make perfect pizzas that can be divided up. Includes related math activities.

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.