20 Years Ago: (age 11) when i was 11 i was in 6th grade. middle school sucked ass, so i was probably deep into fantasy. i'd say i read Tolkien around this time, as well as the first 3 books in Piers Anthony's Apprentice Adept series. Like Stephen King at this point too.
15 Years Ago: (age 16) i can definitely say i tore through Anne Rice at this point, as well as reread a bunch of King. I did enjoy the classics and Shakespeare i read in high school at the time too.
10 Years Ago: (age 21) i was working on getting through college at this point so probably reading whatever i had to. Lots of anthropology.
5 Years Ago: (age 26) i was about this age when my mom gave me the first four Harry Potter books. so then i loved Harry.
3 Years ago: (age 28) I really got into political non-fiction around this point, as well as jumping into memoir and biography in general. Philosophy and buddhism. Jared Diamond.
Last Year: (age 30) I believe i found George R.R. Martin about a year ago. more non-fiction too.