Joseph Rosenbloom Books

Relates the adventures of 12-year-old Maximilian and his friends, Peter and Jessica, as they help the police officers of the Mid-Manhattan Precinct solve a variety of crimes. Solutions are provided...

Maximilian Does It Again: 2

By Joseph Rosenbloom, Rosenblum

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A collection of fourteen "case histories" which Maximilian, the amazing twelve-year-old Manhattan detective, was instrumental in solving.

Deputy Dan and the bank robbers

By Joseph Rosenbloom

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The First Dragon Riddle Book

By Joseph Rosenbloom

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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.