2012 ← Folder
--January ← Folder
----Concert* ← Project
----Business Trip* ← Project
--February ← Folder
----Vacation* ← Project
That's a _storage_ structure. You should also design a _retrieval_ structure.
Re: Organizing in Aperture, concise long version.
Note that the storage structure you are choosing to create is (mostly) easily created at any time by going to Projects View and sorting by date and grouping by year.
Note too that Albums show as children of Projects in the Library Inspector, but they do not inherit the Project's contents, and the Project does not display the Albums contents. This is, frankly, weird. That's why the containers I've assigned above to your (so far) desired storage structure are only Folders and Projects.
You might add Albums as children of your Projects. For instance
2012 ← Folder
--January ← Folder
----Concert* ← Project
------Pre-concert/outdoors ← Album
------Concert ← Album
------Post-concert candids ← Album
----Business Trip* ← Project
------Travel pictures ←Album
------Meeting & corporate HQ ←Album
------Lunch candids ← Album
--February
----Vacation*
Strongly recommend reading the linking "Naming of the parts", and creating and practicing with a test Library, until your are comfortable with the parts of Aperture: Images, their containers (Projects, Albums), and the containers of containers (Folders).
Message was edited by: Kirby Krieger