How to make pictures becomes black and white

hello buddy, I'll share simple tutorial. make colorize picture to black and white picture.
OK, let's open photoshop and open picture from your computer.
"File>>Open" and choose your image from your computer.
I choose this image from my computer (look pictures below)

and let's rocks....!!!

"Image>>Adjustments>>Desaturate" (look picture below)

and the result image is..... (look picture below)

sorry, it's just simple tutorial for newbie

or view / download video here http://www.youtube.com/watch?v=0ULeoARuwPw