For anyone who was subjected to the standard intro ordinary differential equations (ODEs) course and left unenlightened, I’d highly recommend Vladimir Arnold’s

For anyone who was subjected to the standard intro ordinary differential equations (ODEs) course and left unenlightened, I’d highly recommend Vladimir Arnold’s book on the subject [1]. It gives a lot of insight into the underlying geometry and can be read profitably by anyone comfortable with Calculus I-III and undergraduate Linear Algebra, and who took intro ODE. It wasn’t until I worked through this that I really got and appreciated ODEs. [1] https://loshijosdelagrange.files.wordpress.com/2013/04/vladimir-i-arnold-vladimir-i-arnold-roger-cooke-ordinary-differential-equations-1992.pdf https://loshijosdelagrange.files.wordpress.com/2013/04/vladi...