It is illegal to sell a "stripped" book because it is common practice for booksellers to return the covers of unsold books to the distributor to claim a credit for the book. Just the covers are returned to save on shipping costs, with the assumption that the now-unsalable remainder of the stipped book will be recycled or otherwise disposed of. If an unscrupulous bookseller then tries to sell the coverless books, they are essentially stealing from the distributor.
Full, copyrighted books? No, that would be illegal. You can read books about copyrighted books, though.
Downloading PDF books without the permission of the copyright holder is illegal and considered a violation of copyright law.
It isn't necessarily illegal. There are several books whose copyrights have expired and are free to read on the internet. At the same time there are always pirated copies of books that appear on the internet and are still copyrighted which would make it illegal.
It may or may not be illegal for a teacher to take your library books. It depends on the circumstances. It is usually illegal for a teacher to keep them. The books belong to the library. If your teacher took your books from you and did not return them to you they should have been returned to the library. I can not comment on your particular incident without knowing more details.
That would be illegal.
no it is not alegal to burn a bok
Downloading books without the author's permission or from unauthorized sources can be illegal and a violation of copyright laws. It is important to obtain books through legal means such as purchasing them or using authorized platforms for downloading.
Downloading books from Libgen is considered illegal in many countries because it involves accessing copyrighted material without permission from the authors or publishers.
That is illegal.
Any posting of the books online are in violation of copyright laws and illegal.
No. Many books and movies portray actual police departments.
That would be illegal. lol