Here is a tutorial on how to share your calendar with someone else.  

 Getting to the Sharing Settings

1. In your calendars page, go to the name of the calendar you wish to share on the left. 
2. Hover over that name and an arrow will appear to the right of it. Click on that. 
3. In that menu, click on "Share this Calendar". 
4. You will now be in a window for changing sharing settings for that calendar  

Sharing Settings Screen Description

There are many things you can do on this screen, so here are some details of different parts:

Global Sharing Options

• The upper portion is for broader sharing options. 
  • You can choose to share with the general public. This will allow anyone in the world to see your calendar, so decide whether you want that before doing it. 
  • You can also choose to share it with everyone in your organization. 
  • To share, just click on the checkbox next to the option. 
  • There is also a dropdown with a couple options on what to share. There are two choices. 
    • You can share all event details, which will let people see exactly what you're doing at a given time. 
    • Or you can share your busy schedule, which just lets them see whether you're available at a given time or not. 

Sharing With Specific People 

• The lower portion allows you to share your calendar with specific people 
  • On the left is a text box where you can put in an email address of the person you wish to share it with. 
  • On the right, you have another dropdown, much like the ones above. This gives four options, however. 
    • The event details and busy schedule choices are the same as above. 
    • Now there is an option to allow them to make changes to events, like adding, moving, and removing them. 
    • There is also one that gives them that ability, as well as the ability to share the calendar with people themselves. 
  • Below these options, there is a list of specific people who you have shared the calendar with. 
    • At any time, you are able to change the level of access they have to the calendar 
    • You can also remove them at any time by clicking the trash can to the right of their name.