Functional Analysis is a crucial subject for mathematic students. The subject comprises of studying various theories and complicated concepts. Students find it challenging to understand various concepts of Functional Analysis. To study functional analysis on your own, you need a strong knowledge of linear algebra, abstract algebra, real analysis, topology. When you would self-study functional analysis, you would need a deep understanding of the subject and an understanding of every step of the theory as well as its applications. You would need vast information on Functional Analysis along with its introductory ideas.