Hi all, From the past few days I am trying to read Kolmogorov's introductory real analysis, so far I have finished the first two chapters on set theory, metric space, but from past one week I am trying to read the third chapter on topology but this thing is going over my head, it seems so painful & hard :( does anyone know any good source on topology, no offence but please don't recommend me the video tutorial because it's very time consuming plus I am not good in learning through videos so I will really appreciate if you know any good text on topology. Thanks in advance. P.S. I am a self taught student whose goal is to study measure theory & then stochastic calculus, prior to Kolmogorov, I have studied Spivak's calculus, & paul's notes. Also if someone knows a good text on introductory probability then please do let me know.