As a book reviewer for publishing houses I get free paperbacks and hardcovers all the time. I get random emails from the publicists and when they ask about format I always say the truth. I am more likely to get to it if I see it on the end table than if it's lost inside my kindle among 5,000+ other books. That said, I have cut way back in recent years on the amount I can read so Instead of getting 200 books a year now I only get 12-15 books a year. Here are a few I got in June this year.
