This module was a clear continuation from Module 11, and it helped to occasionally refer to the other module's instructions to refresh my memory. All instructions were clear for this assignment, with the small exception that under "Specification #6" it said to change the Code.gs of Module 11's calendar, from the Summer Classes schedule. I enjoyed this module because I am becoming a bit more adept at managing tasks in Google Sheets. One minor comment is that in my Sales Event Calendar page, I am unsure of how to display the calendar for May 1st, 2017 automatically because as of right now it displays the current date and year. In order to see the assignment, you must manually click back to 2017.