multi-day Event is when you have an event that occurs several days in a row. For example, your event would be from July 1st - July 5th or February 23rd - March 5th. The days will be connected visually through the days you have chosen using a solid block of color. See the example below:

By default when you create a multi-day event the event is only one line high, no matter how much text is in your event. However, you can change this default so that your multi-day events are 1,2,3, or 4 lines high. See the image below:

To learn how to change the height of your multi-day events follow the steps in the image below:

To show all of the text for single-day events you'll need to turn on Adjust Row Heights.