It will answer all your questions. Buying T-Bills is very simple,just link your existing bank account with a new Treasury Direct account and follow instructions. You can buy a 7 day T-Bill for the minimum of $1,000.00 to get your feet wet. All past auction results are posted giving you the interest rates, and auctions are held weekly. Do not be intimidated by the word “auction”, it is the govenments was of “selling” you a T-Bill. I rate the site an A+.