Trade paperbacks have the awkward size and high price of hardbacks and the low durability of paperback. I’ve never understood why they exist. Sure, they’re somewhat cheaper than hardbacks, and sometimes they’re printed on better quality paper than mass market paperbacks. But to my mind, they’re expensive and awkward.
Still, when putting my book together on CreateSpace, 6″x9″ was the smallest size they offered. So, I took it. It’s a shame, especially since my book is short (ca. 70 pages at this size). So, it will be slim and tall and inconvenient. But it will be there.