Hi, Jhonny - yeah, agree, you can travel the world immersed in books. With the title of an essay we would normllay put the important words in initial capitals, particularly the word "Reading' as this is what the whole essay is about. As I am from UK I would spell it 'favourite' but you may be learning American English so understand. It should be 'to read books' not 'to reading books' which is grammatically incorrect. If you wanted to use 'reading' you would have to write it 'one of my favourite things is reading books' but as you added the words 'to do' you have to follow it with 'read'. Apart from this your article is well thought out and reads well. In paragraph three we have a lot of information and to ensure it reads smoothly I have just suggested an amendment.     

The Magic of Reading

One of my favourite (favorite) things to do, is read (reading) books. I consider it to be (that is)  fun because I can travel to anywhere just with my imagination. It is just the book and me and I'm being part of that unknown world.

The best part of reading is that a simple book can make me happy, sad, mad, anxious and a lot of other emotions I can't even describe, which makes it "real".

It is also the best way to relax myself and just forget about any problem I may have, as well as (or take out) relieving the stress of my (from the) University studies.

I know it sounds corny and cheesy (and I hate corny and cheesy things) but I don't care and I'm still proud of being part of what I call "The magic of reading".

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I hope I'm better with my grammar this time.