Is there any alternative books that teach you how to just do the problems rather than emphasizing why, and is there any books that emphasize why in an easier format? Something like a "mathematical methods for dummies" book? This is the book I'm referring to ( https://www.amazon.com/Mathematical-Methods-Physical-Sciences-Mary/dp/0471198269 ) if you are not familiar with it and I personally think that the book is not the best. I dislike it. It seems to be in between of what could be two great books. Some of the problems are really great, some explanations are great, but other times it is a bit confusing and I can't decipher what they are saying. I guess I'm looking for two book suggestions: 1.) Simple to read through and get core concepts ("explain to me as if I was 5" type of book) 2.) A good book with problems and solutions that go through the steps very clearly with a solution Thank you for your recommendations. I heard a book by Arfkin is good, does anyone know the name of the book?