Bryan Caplan and Zack Weinersmith’s Open Borders is available for pre-order today. It’s going to be excellent.

URL for pre-ordering the book: https://www.amazon.com/gp/product/1250316960/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=1250316960&linkCode=as2&tag=bryacaplwebp-20&linkId=1ed2cdfe4a1c0cd2a62e942a39f87b9d

URL for an introductory post on the book: https://www.econlib.org/pre-order-open-borders-the-science-and-ethics-of-immigration/