Allow for goal of pages or books, not just number of books

[Christopher]

I sometimes read long books. Having a goal of # of books in a year discourages long books and encourages books I can finish quickly. It also discourages selection of books important to me (like classics) in favor of ones I can read quickly.

Can the yearly goal have a "number of pages read", or perhaps a "books I want to read this year" option?