Reddit mentions of Animal Rights, Human Wrongs: An Introduction to Moral Philosophy

Eating Animals by Jonathan Safran Foer might interest you. Almost seven years old now, but still interesting.

Maybe you would like something written by the animal rights philosopher Tom Regan. His Empty Cages are a great read, and he has written a very readable introduction to moral philosophy on ~150 pages: Animal Rights, Human Wrongs

I would recommend reading Animal Rights, Human Wrongs: An Introduction to Moral Philosophy by retired philosophy professor Tom Regan. This clarified the moral dimension of the issue for me. For instance, if you still have persistent moral justifications for exploiting non-human animals, this book makes everything theoretically clear.