The list author says: "A list of physics and math textbooks with a creative spark to them, beyond just technical exposition. I recommend reading these to re-kindle "the old excitement" and jar a creative spark."
"Lots of creative problems. One problem, for instance, uses the relativity of simultaneity to ask whether a train is destroyed in one frame of reference vs. another. Or, using infinite series to determine the moment of inertia of fractal objects."
"Gil Strang is a big name in the field of applied mathematics. I have not read this book, but I've found it is written with the same playful prose as the Griffiths or Morin texts. It seems promising, and I intend to use it to replace my old (dry) undergrad calc text."
"Some have complained that there are no solutions, even in the back of the book. While this is true, it must also be said that this text practically walks you through the problems. I was only in my third semester of physics classes in my entire life and had no trouble on any of the problems whatsoever. Use this text to gain confidence in working physics problems *without* a solutions manual."