What cord do I need for my laptop and camera?

What cord do I need for my camera and laptop to where when I take the photo the image pops up on my laptop like theu do at any photography place. I can't seem to find that information. I have a nikon d3200

It is very likely that your camera can't do that.

You need UC-E17 USB cable to transfer photos from camera to laptop. UC-E6 USB cable can be used as an alternative
http://www.amazon.com/...0000A1VS3/
https://nikoneurope-en.custhelp.com/app/answers/detail/a_id/8446

See page 128 for instructions - http://g-ec2.images-amazon.com/images/G/01/electronics/Camera/Nikon/D3200_EN._V327008461_.pdf
Do not turn the camera off or disconnect the USB cable while transfer of photos is in progress