3 ms·

What is illegal download?

• grzm 10y ago
  From the linked material: Copyright © 2009 Pearson Education, Inc. All rights reserved. Printed in the United States of America. This publication is protected by copyright, and permission must be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. I see no indication that the site is affiliated with Pearson or Bob Martin or that they have permission to redistribute the PDF. It's much more likely they're hosting it without permission, and therefore illegally.