What is Treasury Bills and how can one expect to invest in it?

[Fidelia]

I have been hearing about people investing in Treasury bills and I am completely lost to what it is all about?

Can someone here put me on regarding what it is all about and how I can invest or make money from it?

 

[Suba]

Treasury Bills are a type of short-term bond issued by the government, bondholders will receive interest, you can sell/buy Treasury Bills in ETFs, money markets or in the US can be purchased directly.