How the States Got Their Shapes

The book weaves geography and history in a way that feels both detailed and engaging. I'm curious what motivated the author to take on this particular topic.

Some of the boundary stories are hilarious or baffling—like how certain borders were decided by a coin flip or compromise. Did any of these stories stand out for others?

With so many fascinating border histories, I wonder what guided the selection process—was it based on significance, personal interest, or available sources?