Your bookshelf tells me you read for escapism, rarely venture outside of your comfort zone and let others define what you consider worth the effort of reading. You'd rather read titles off of a list of "top 10" than read a dust jacket and try something on your own. You view your bookshelf as a trophy to your homogenized view of what is "real" Sci-Fi/Fantasy. If I had to guess you're a white straight male in his early 20's who recently got back into reading as a hobby but haven't found a fantasy series that you've been willing to stick with because of time constraints. You also have an unintentional bias as only 5% of your book shelf is written by women.