>>12992747Jackson is a book for physicists, first of all. It recognizes that, unlike what you might have seen in undergrad, in almost every remotely realistic setting you will not be able to analytically solve Maxwell's equations. It is a book of approximating integrals, recognizing which limiting regime you are in, and realizing what a crutch symmetries have been throughout your physics career.
If you are interested in how working physicists actually approach problems in the real world, then Jackson is great. It is messy and full of non-rigorous ~ signs, and no amount of fanciful mathematical formalism can erase that fact. On the other hand if you're more interested in the mathematical physics side of things and seeing how deep the formalism rabbit hole goes, then Jackson will be a waste of your time.
