Map Series - option to index by unique attribute

[AndrewChristensen]

I am using a feature with thousands of records and would like to create a map series based on the unique attribute value within one field.

Company	Division	Area
ABC	North	Great Lakes
ABC	North	New England
ABC	South	Gulf Coast
ABC	South	Bayou
ABC	West	Rocky Mountain
ABC	West	Salt Lake

For example, from this table, I would like to have the option to create a map series with 3 maps, one for each Division instead of 6 maps, 1 per feature.