Reasons to attend the 2009 Brooklyn Book Festival: 1) it’s one of the most hip, smart and diverse American literary events, 2)  because Ben Marcus, Sarah Manguso, Thurston Moore, Heidi Julavits and Tao Lin are just some of the stars and emerging writers who will be talking/reading, 3) panels will talk about DFW , rappers and upward mobility, among a lot of other great things read and discussed, and 4) because it’s free (though for some events you need to secure tickets in advance).