If you are a member of multiple academies, it is easy to switch between them!
To switch to another academy, select the Workspace Launcher, and then click on the arrow above the list of workspaces.
Now you will see a list of the Academies of which you are a member. To head back to the Workspaces, click on the X. To switch to another academy, select the academy you want to log in to.
Related: Changing Your Landing page