Karl Rühmann Books

The night before kindergarten

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A story in the style of the familiar poem, "The Night Before Christmas," tells about getting ready for the first day of kindergarten.

Who will go to kindergarten today

By Karl Ruhmann, Miriam Monnier

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Sam decides to send his toy monkey Timbo to kindergarten in his place, but after telling Timbo about his school friends and what his day is really like, he realizes he wants to go himself.

The little Christmas tree

By Karl Ru Hmann

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A young fir tree hates feeling small and useless, but as winter falls and Christmas approaches a small boy and his family discover that the tree is the perfect size for something very special.

The Night Before Kindergarten

By Julie Durrell, Natasha Wing

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But I want to!

By Karl Ruhmann

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When his mother says "No!," a young boy thinks of all the wonderful things he could do if he sent her to the moon, but then he realizes he wants her around, especially to read bedtime stories.

But I want to!

By Karl Ruhmann

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When his mother says "No!," a young boy thinks of all the wonderful things he could do if he sent her to the moon, but then he realizes he wants her around, especially to read bedtime stories.

Who will go to school today?

By Karl Ruhmann

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Sam decides to send his toy monkey Timbo to kindergarten in his place, but after telling Timbo about his school friends and what his day is really like, he realizes he wants to go himself.

Who will go to school today?

By Karl Ruhmann

Average: 0.00, 0 Ratings

Sam decides to send his toy monkey Timbo to kindergarten in his place, but after telling Timbo about his school friends and what his day is really like, he realizes he wants to go himself.

The little Christmas tree

By Karl Ruhmann

Average: 0.00, 0 Ratings

A young fir tree hates feeling small and useless, but as winter falls and Christmas approaches a small boy and his family discover that the tree is the perfect size for something very special.

The little Christmas tree

By Karl Ruhmann

Average: 0.00, 0 Ratings

A young fir tree hates feeling small and useless, but as winter falls and Christmas approaches a small boy and his family discover that the tree is the perfect size for something very special.

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.