Joseph Rosenbloom Books

School s Out Great Vacation Riddles Jokes

By Joseph Rosenbloom

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World's toughest tongue twisters

By Joseph Rosenbloom

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An illustrated A-Z compilation of some of the world's toughest tongue twisters including "'Twixt six thick thumbs stick six thick sticks" and "Truly rural, Truly rural, Truly rural."

World's toughest tongue twisters

By Joseph Rosenbloom

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An illustrated A-Z compilation of some of the world's toughest tongue twisters including "'Twixt six thick thumbs stick six thick sticks" and "Truly rural, Truly rural, Truly rural."

Gigantic Joke Book

By Rosenbloom, Joseph Rosenbloom

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The world's best sports riddles and jokes

By Joseph Rosenbloom

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Presents hundreds of riddles and jokes relating to football, baseball, weightlifting, karate, croquet, and other sports.

The world's best sports riddles and jokes

By Joseph Rosenbloom

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Presents hundreds of riddles and jokes relating to football, baseball, weightlifting, karate, croquet, and other sports.

Nutty Knock Knocks

By Joseph Rosenbloom

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Giant Book of Put Downs Insults Excuses

By Maureen Kushner, Joseph Rosenbloom

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Funny Insults and Snappy Put Downs

By Joseph Rosenbloom

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The funniest haunted house book ever!

By Joseph Rosenbloom

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An illustrated collection of jokes and riddles about ghosts, witches, monsters, and haunted houses.

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.