What is a planogram?
A planogram is a diagram of fixtures and products that illustrates how and where retail products should be displayed, usually on a store shelf in order to increase customer purchases. They may also be referred to as plano-grams, plan-o-grams, schematics or POGs. A planogram is often received before a product reaches a store, and is useful when a retailer wants multiple store displays to have the same look and feel. Often a consumer packaged goods manufacturer will release a new suggested planogram with their new product, to show how it relates to existing products in said category. Planograms are used nowadays in all kind of retail areas. A planogram defines which product is placed in which area of a shelving unit and with which quantity. The rules and theories for the creation of a planogram are set under the term of merchandising.
A basic planogram can look like this 
and a more HD planogram will look like this 
.
Note: Don’t get confused on the HD part I added this meaning High Definition.
This was helpful but I am more of a visual learner, and I would like to see a video of the actual POG, and it being used in the store.
yes you are correct I have actually been thinkin to create a retail mini-series of tutorials on planograms and fixture set-up, I may do this in the near future.