...
Get Familiar with Outlook Calendar
Best practices
...
A neat example Oliver found, 8/27/15:
To schedule a meeting:
Browse my calendar (switch to "week view") and identify a vacant 30-minute time slot between 10am-6pm.
Switch to "week view" (top right corner) and it will be easier for you to see my hour-by-hour availability.
If possible, please choose a time slot that is adjacent to an existing "busy" slot so as to reduce the fragmentation of my day. Please avoid scheduling a meeting with less than 24 hours notice.
Then, send me (perhaps provide your email address) a meeting invitation directly (e.g. using Outlook Ctrl-Shift-Q or Google calendar event "Invite Guest").
Thanks!
...
Other calendar resources
Course scheduling tools
http://cornell.schedulizer.com/
...