How to prove it

Dear Sumant,

Today I made spicy Rajmah. In the afternoon Udita and I went out to grocery shopping. Yesterday I went to Barnes and Noble and browsed through two books. One was on "Codes" ie history of Cryptography and the other one was on Golden Ratio. I would like to read the Simon Singh's book before I take the class on Graph Theory this summer. I am these days reading with interest the book "How to Prove it". by Daniel J. Velleman . It's one of the best book on proof writing.

Best regards
Sumant Sumant