your favorites...

what is your favorites writer and book?
my favorite writer ildefenso falcones and his books. of course there are other writer.

Hello, Reyhan. The title of the article should be in initial capitals and as you are talking about one writer is should read Favourite. Please note you have spelt favourite incorrectly (favorite is American English). You also need to start each sentence with a capital letter and include is before the name, which needs to be in initial capitals. I have amended, as follows:  

Your Favourite

What is your favorite writer and book? My favorite writer is Ildefenso Falcones and I like his books. Of course, I have other writers I also like. (there are other writer)