Context Mapping is a powerful technique to visualize relationships between systems and teams. However, they can become hard to understand for people who are not experienced with Domain-Driven Design or the context mapping patterns. Even some pattern names are not self-explanatory for certain groups of stakeholders and the same applies to some of the definitions.
Therefore:
Before you start drawing context maps you should decide which of the patterns you are going to use, and you will do yourself and the stakeholders of your context map a big favour by providing an explanation of those patterns. Make sure that all folks working with your context map do understand the patterns. Examples are always a good idea for such explanations.