Indeed a very creative idea & this will help in a big-2 way as far as time,money & energy saving is concerned BUT IT WILL BE EQUALLY USEFUL IF YOU PROVIDE THE CONACT TELEPHONE NO. SO THAT BOOK-LOVERS FFROM OTHER AREAS MAY ALSO GET BENEFITTED , I think one can discuss the availability of books on phone and big deals are possible & a win-win situation for seller & buyer both.
