I was wondering if anyone has any recommendations for a Fourier Analysis textbook. I have Stein & Shakarchi's Fourier Analysis textbook, but ideally I'd like to have one that takes advantage of some of the analytic machinery that I know that Stein & Shakarchi doesn't assume. I have a basic graduate level knowledge of Real Analysis: some point-set topology, properties of the Lebesgue measure and measurable functions, some more measure theory, a little functional analysis, topological vector spaces. If anybody has any suggestions I'd really appreciate them. Thanks!