Hi folks ... I urgently need good books about Functional analysis and Topology. These must be comprehensive and thorough, undergraduate or graduate. Please, advise and provide your experiences with such books. I accept only thick books ;) e.g Introductory Functional Analysis with Applications by Erwin Kreyszig ? What about An introduction to functional analysis by Mischa Cotlar ? Topology by Munkres ? Introduction to Differential and Algebraic Topology by bunch of Russian guys ? Many thanks in advance to all who reply !