Need a crash course in fourier analysis, recommend resources I need to be able to understand everything about fourier analysis asap. Could you recommend one or two references or books that are considered 'the book' to learn this subject?

It really depends on what level of Fourier analysis you're talking about, and whether you're coming at it from the applied  (for example, how to use Fourier series or transforms in solving PDE's) or the pure real/harmonic/functional analysis sides.  On the pure side, I'd recommend Edwards, "Fourier Series: A Modern Introduction" and Rudin, "Fourier Analysis on Groups",  
