Instruct: Classify a review into positive or negative sentiment.
Query: Unreadable on Kindle

Just downloaded this on laptop and android phone and it is almost useless on both, because all of the phrases, verb charts, etc are image files that are too small to read. The regular text explaining the language, and the dictionary are fine, but as there is no way to enlarge the text in the tables (must be image files), you literally need a magnifying glass to see them. Worse, some are sideways oriented 180 in wrong direction and cannot be rotated. Someone should have checked this before marketing as an e-book. It is probably fine in print. Just requested a refund- first e-book I have bought that is not readable on my android phone, or even laptop.