Convert document/e-book to audiobook Customer gives me an e-book or a document, I record audio of that document and send it to the customer. I am not redistributing that work, I only charge the customer. Will this infringe the copyright law? The customer could be giving me an e-book that he bought.
The audio book would probably be an infringing derivative work because the client could redistribute it once the client received it. It sounds very much like a product that is regularly sold by merchants relying on copyrights. Conceivably, simply reading a book aloud to a client in some sort of streaming context that could't be shared with others or replayed would merely be fair use, much like hiring a baby sitter to read a book aloud to your children would be clearly fair use. If there were an automatic text to sound converter as opposed to an individualized performance, it might not be considered infringing. There are people with programs that do this who haven't been sued, but the boundaries haven't been explored very thoroughly. Honestly, there isn't a lot of guidance in this area from statutory language, and the questions would often not be guided by much case law involving similar facts. Your intuition living in the modern world is probably almost as good as a lawyer's in this situation.
It would be terribly risky for you to simply link another company's terms of service. What if they take their server down? What if they change their terms? You would not even know when exactly the changes were made. Copying their terms means you might run into copyright issues on the text. Either pay a lawyer to write your ToS for you, or see if you can find something in the public domain.
Not necessarily, but also possibly. Google Books may (or may not) have a license to distribute images of the book covers in question. This license would be between Google and the owner of the copyright of the book cover. Just because Google has a license to distribute the image of the book cover to you does not mean that you have a license to distribute the image of the book cover to your customers. However, depending on jurisdiction, using the book cover to identify a book might also be legal under relevant fair use statutes. It is also possible that the particular book cover is not protected by copyright. For example, a particular book cover might have entered public domain. If this question is not a hypothetical, you should probably consult a lawyer.
Everything except the summary and the cover art are all facts; facts are not subject to copyright. The summary and cover art would be subject to copyright. You may have a fair use defence given that all you are doing is cataloguing the books.
You cannot create derivative works without permission of the copyright holder (even if you create it and keep it to yourself). Further, you cannot distribute derivative works without permission of the copyright holder. That's a general principle that always applies. Since there is a license, you need to read that license carefully and determine under which conditions you have permission to create derivative works, and to distribute them. Your book would be considered a derivative work. In some situations, like commenting on a work, parody and some others, you would have a defense if you are quoting tiny parts of the work. But generally, if you find it unfair that your 200 page needs to be licensed because you used two pages from an open source source, you either do without those two pages, or you find the author and ask for permission under a different license. Note that facts are not copyrightable. So if the wikipedia page contains facts and isn't just made up, you can read it ten times, memorise all the facts, and maybe tell the facts to someone who you pay to write a similar article.
No. You may not do this. As your post points out this is a blatant copyright violation. It isn't remotely in the realm of fair use.
Exactly the same way it works over all other content There are no special classes of copyright, there’s just copyright. What a user of a service may do with copyright materials will be spelled out in the licence. If there is no licence, then they are left with fair use/fair dealing.
The copyright on the book of quotations protects the collection. That is, it protects the author's choice of which quotations to include, and of what order to list them in. It also covers any division of them into groups or categories, and any added text (intros, comments, and so on) written by the author. It does not protect the quotations themselves. As those are not the original work of the author, s/he can have no copyright in them. Any quotes that are in the public domain (through expiration of copyright, or otherwise) may be used freely. Any others are protected by copyright. However the use of a short quotation is often fair use under US law, or is subject to another exception to copyright elsewhere. But that depends very much on the details of the factual situation. So quotes with expired copyrights are safe to use. Others may well be safe if they are relatively short, and proper attribution is given.