Interested in Language
I have some grammar books in pdf, may I post a link to download them? Is it an infringement of copyright to do so?
What are entre books?
Three of the five grammar books mention no copyright or words to that effect, are they ok?
If you wish to quote a short passage from a book in order to ask a question about what has been said, that's fine. Don't forget to acknowledge your source.
If your plan was to post a link to the whole book in pdf form, I would suggest that you not do so. Unless you got the books from a clearly free source where it states "Copyright-free. You are free to download and share this material without restriction", then I don't think it's a good idea. Where did you get the pdfs from originally?
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.
I freely downloaded them from other English learning sites some time ago, but most download links no longer exist now.
Just forget it as you don't think it's a good idea.