Brains aren't viewable to others, but this can be shared out of the love of archivism and openness. If you wish to view it, know that it was not created for you, and there are some things you ought to know..
Problem: Given an item in the Internet Archive, e.g. The works of Ralph Waldo Emerson, you may be tempted to download the PDF for its exactness. Admirable! However, my e-reader is horribly slow for opening it and turning pages. I find slow page turning aggravating; it makes me lose my train of thought and strains my reading comprehension.
This extra work is well worth it for me.
See also PDF? I haven't tested it, but I wonder if "repairing" a PDF would also help with e-reader speed.