RPG Architect has a few different sources for tutorials: Official and Community. At present, they are all videos, but this will change as we approach 1.0.
The official tutorials are designed to explain features in a longer format and have been put together by or donated to the RPG Architect team. The videos included may be outdated at the time of viewing, but should still serve as a good entry-point into the software.
In the future, we look forward to having a new playlist of tutorials (and written instructions) on how to get started with your first game, once we hit 1.0. At this time, old videos on the same topics will be updated to point to the newer videos.
The community tutorials have been composed into a curated list, usually from trusted sources.