Hi guys! I was wondering if anyone knew of a particularly nice book that taught one how to solve physics problems that need the use of green's functions and/or spherical harmonics. I can't seem to find a book that actually does this other than Jackson but I'd rather not tread there (I'm guessing this is usually done in a Jackson type class but I never went the Jackson route; instead I went straight to the classical field theory route which I love much more but where you don't really see these computational methods show up). I am talking, in particular, about physics books and not math methods books. As much as I find these computational techniques highly non elegant and annoying in comparison to pure math / proofs, I need the techniques under my belt, it would seem, as I have stumbled upon many problems that required the use of green's functions etc. but had absolutely no idea how to use them to solve the problem. Thanks for any and all suggestions.