I have an SAT in Biology book by Kaplan with practice SATs and textbook-like information on the biology topics covered. I only used it for a month. It's nicely wrapped in plastic and only have some pencil notes and a few highlighted notes in it. The practice papers have not been written. In 9/10 condition (save the pencil notes). I bought it for close to S$40 and I'm willing to let it go for $30 NEGOTIABLE. SMS me at 93373394