Often, I am being asked about how you can see multiple calendars in a side-by-side view rather than the overlapping view when all calendars are on the same area and different calendars are marked by different colors. While this model works well for few calendars (up to 3-4 for my humble opinion), it's becoming increasingly complicated when you need to see more calendars. Some administrative assistants can manage 5-10 different calendars and in these cases, it's very hard to efficiently operate with Google Calendar.
If you want to view calendar information side-by-side, you can use the "Find a Time" tab of a calendar event. Just create a calendar event, add the attendees whose calendar information you want to see side-by-side and then select the "Find a Time" tab.