[I started my english literature reading recently... i found most of the fiction books are difficult to understand as the words inside are words that i'd never seen before... my interest field of reading is fantasy... young adult reading... i dnt prefer love story though... thanks in advance!

harry potter

I would suggest Percy Jackson Series.
There's a simple english for beginner.

I actually stopped a bit as my current reading is "the bigger the better".
What about the classics like 20000 Leagues Under The Sea, H G Well's The War of the Worlds (science fiction,), The Neverending Story, The Lost World etc
Classics have the advantage of being cheap and short.
Also, I have never tried these stories yet but have the impression that they are good YA series :
Susan Cooper's The Dark is Rising
CS Lewis's Narnia
Lemony Snicket's A Series of Unfortunate Events
If you can post a few of your favourites, ppl can help you more.