'Einstein, Hilbert, and the theory of gravitation' is a fun and short book (under 100 page) on the history of the theory of gravitation and the methodological differences between Einstein and Hilbert.
Get it for free in pdf format, link in the comment
Those two on differential geometry in physics are often liked, particularly Lugo's. He does a very good job at explaining fiber bundles, the book is also very cheap (less than 30 dollars). Lots of the formalities are left behind for an intuitive approach.