I have not heard from you and so I must assume that obtaining any of the books by Friday will not be possible. Never mind, it doesn't matter too much.Perhaps we could instead investigate whether it's possible to purchase an ergonomic USB keyboard. I want to plug it into my laptop, because the present keyboard isn't healthy for my hands. Please tell me the best ergonomic keyboards (a split design is acceptable, because I can touch-type).Yours sincerely,