Joseph Rosenbloom Books

Wild West riddles & jokes

By Joseph Rosenbloom

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Bananas don t grow on trees

By Joseph Rosenbloom

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Presents clarifications of numerous popular misconceptions concerning plants, animals, food, and other topics.

Silly knock-knocks

By Joseph Rosenbloom

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An illustrated introduction to knock-knock jokes, grouped by the letter of the alphabet featured in each.

Bananas don't grow on trees

By Joseph Rosenbloom

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Presents clarifications of numerous popular misconceptions concerning plants, animals, food, and other topics.

Goofy riddles

By Joseph Rosenbloom

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An illustrated introduction to riddles, such as "Where is the ocean the deepest? On the bottom."

Deputy Dan and the Bank Robbers

By Joseph Rosenbloom

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Biggest Riddle Book in the World

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Doctor Knock-Knock's official knock-knock dictionary

By Joseph Rosenbloom

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A collection of over 500 knock-knock jokes alphabetically arranged from Abyssinia to zookeeper.

Doctor Knock-Knock's official knock-knock dictionary

By Joseph Rosenbloom

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A collection of over 500 knock-knock jokes alphabetically arranged from Abyssinia to zookeeper.

Daffy dictionary

By Joseph Rosenbloom

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Includes humorous definitions based on old and new puns, jokes, quips, word plays, and one-liners.

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.