Frequently I hear people say that Logos has a steep learning curve, and as one of the Beta testers I found this to be so at first.
Here are some basic operations I would suggest to anyone just getting started.
1. Be familiar with what is in the find box.

2. Many commands are found in right clik.

3. Know what is in guides.

4. Look in the tools menu.

5. Get to know the panel menu.

Finally, book mark Steve's website which has a well laid out explanation of how the software works, and its connection to the wiki help file, that is often updated. http://navwiki.clark-tx.net/