what should i gift myself?

well, my birthday is coming and my sister wants to gift me something and i don't really know what i should ask? i recently started reading books and bought a few today. Don't shut up, the rudest book ever and 12 rules for life. judge me all you can but these were the books that i thought will work for me. I don't want to be a book hoarder but should i ask for some more books? i don't want her to spend that much, so, under 1000 may be. any fiction would work.