Hannah Roche Books

My dad's a wizard!

By Hannah Roche

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Jessie's dad turns mushy fruit and whipped cream into a striped ice cream treat. Includes recipe and notes.

My sister is super!

By Hannah Roche

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Michael helps Sophie make muffins. Includes their recipe and notes on how baking powder's acid and base chemically react together in the presence of moisture or heat.

Corey's kite

By Hannah Roche

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Corey knows that windy weather is perfect for flying the kite which he made all by himself.

Su's snowgirl

By Hannah Roche

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Su puts on her warmest clothes to play outside and with her friend Sandra builds a big snowgirl with noodle hair.

Have you ever heard a cat purr?

By Hannah Roche

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Cyclical text presents the birth of kittens, their growth into maturity, and the possibility of their finding mates and having their own kittens.

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.