@brandon I think that depends on exactly what you purchased when you purchased the book in question.
...if you need reading material, though, it *is* legal for me to point you in the direction of Project Gutenberg.
@brandon Oh.
...would sending you the title work? Because I've just finished reading a book, but it's *not* an ebook (it's actually physical ink-on-paper).
Even in the case of ebooks, though, surely it's legal to send you the title and the name of the author. Even a summary of the major argument(s) and an opinion of how good it is.