Mrs. Perkins's Electric Quilt: And Other Intriguing Stories of Mathematical Physics

I bought it, but I only read a chapter of it, after seeing it in a bookstore. Nonetheless: Mrs. Perkins's Electric Quilt: And Other Intriguing Stories of Mathematical Physics by Paul J. Nahin It sounds like it's at about the right difficulty/knowledge level, and it has interesting stuff, isn't a boring textbook.