Portable Press / The Bathroom Readers’ Institute An imprint of Printers Row Publishing Group 10350 Barnes Canyon Road, Suite 100, San Diego, CA 92121 www.portablepress.com • mail@portablepress.com

Copyright © 2019 Portable Press

All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the publisher, except in the case of brief quotations embodied in critical reviews and certain other noncommercial uses permitted by copyright law.

Printers Row Publishing Group is a division of Readerlink Distribution Services, LLC. Portable Press, Bathroom Readers’ Institute, and Uncle John’s Bathroom Reader are registered trademarks of Readerlink Distribution Services, LLC.

All correspondence concerning the content of this book should be addressed to Portable Press / The Bathroom Readers’ Institute, Editorial Department, at the above address.

Publisher: Peter Norton • Associate Publisher: Ana Parker
Developmental Editor: Vicki Jaeger
Publishing / Editorial Team: Kathryn C. Dalby, Dan Mansfield
Production Team: Jonathan Lopes, Rusty von Dyl

Created and produced by Javna Brothers LLC

Interior design: Lidija Tomas
Floor map in “Roomba with a Poo” reprinted with permission from Jesse Newton.

“Those people who think they know everything are a great annoyance to those of us who do.” —Isaac Asimov

eBook ISBN: 978-1-68412-988-1
eBook Edition: September 2019