Adobe Illustrator is a vector graphics editor program. If you have not used Illustrator it's a good idea to familiarize yourself with the tools panel, their different functions, and the workspace basics:
In the video below, Martha walks us through how to bring in the data we exported out of ArcMap (see 3. Use ArcGIS ONLY for Making Figure Building Block) and build a basic figure in Adobe Illustrator.
This sequence of videos from Sara walks through the basics of using Adobe Illustrator, how to add some stylistic touches, and assembling multiple components together.
Adding Some Stylistic Touches to Your Figures:
Assembling a Figure Made Up of Multiple Maps & A Table:
Useful Quick References > Figure Preparation Guidelines > 5. Assemble the 'Figure' in a Drawing Application >