Book suggestion to prepare the grounds for studying functional Analysis Hi guys I have 2 month semester break in February and March and I am planning to take a course on functional analysis in 4 months. I have taken a very elementary course on Linear Algebra(Gilbert Strang Mit Ocw) and a very short course (5 week) on a bit advanced linear algebra(first 5 chapters of Peter D Lax.I am thinking of getting more comfortable with the structure of linear operators. I am confused between Linear algebra by Peter D Lax and Halmos(Finite Dimensional vector spaces) . Which one would you recommend?
Thanks in advance

I usually expect someone going in Functional Analysis to have a working knowledge of Rudin's Principle of Mathematical Analysis (at least chapters 1-5 and 7). Some Complex Analysis and Measure Theory don't hurt, either. 
