The basic package is CC3+ and the Tome of Ultimate Mapping (or 'the Tome', as we tend to refer to it)

CC3 Plus (CC3+) is a vector app built on a FastCAD engine that uses bitmap symbols and vector polygons filled with bitmap textures. That is a huge simplification, since its an enormously powerful app with hundreds of different tools. That is where the famous learning curve comes into play - learning how and when to use the tools. There are three main 'overland' styles built into CC3+. An overland style is an isometric view style suitable for regional mapping, such as you might use to create a world, continent or region map. There are a couple of examples here on the Profantasy page , where CC3+ is described in comparison with the older CC3 app.

CC3+ comes with a user manual that will get you started on the learning curve. This is great for beginners, but if you wish to become really proficient with the software the Tome is the answer. It has over 600 pages of brilliantly written and illustrated methods and is regarded as something of a bible among CC3ers.

I hope that helps a bit