Any good books on PDEs?

I'm wondering if people have recommendations on this topic. It's something I've been meaning to tackle for a long time now. I'm interested in learning how to solve PDEs as well as learn about uniqueness theorems and such. The more rigorous the book is, the better.



I already have good experience with ODEs and I'm pretty comfortable with them. I also have some experience already with BVPs and Fourier series.