body: I have seen an book [Chemistry Essential for Dummies](http://images.pcmac.org/Uploads/JeffersonCountySchools/JeffersonCountySchools/Departments/DocumentsSubCategories/Documents/Chemistry%20Essentials%20-%20The%20Most%20Basic%20Guide.pdf) on web which says that
  
  
  
  > 
  > No part of this publication may be reproduced, stored in a retrieval system or transmitted in any 
  >  form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, 
  >  except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act
  > 
  > 
  > 
  
  
  Is it legal to download this book under the sections 107 or 108 of the [Copyright Law](http://www.copyright.gov/title17/92chap1.html)?.I couldn't understand the sections since it's too lengthy and hard to interpret.Could anyone explain it in simple words. 
  
  
  
title: Section 107 and 108 of the 1976 United States Copyright Act