Microsoft has made several interactive guides to help IT Pros, Organizations, Dev and other IT people to learn more about Office 365.
Bellow you have many interactive guides to help you in the daily basis of working with Office 365.
Deploying Office as a Service
Office 365 Groups
Office 365 Security & Compliance
Skype for Business
Office 365 Migration Guides
New Online Interactive Guides
Sources – https://techcommunity.microsoft.com/t5/Online-Interactive-Guides/Updated-Online-Interactive-Guides/m-p/28352#M1 and https://techcommunity.microsoft.com/t5/Online-Interactive-Guides/New-Online-Interactive-Guides/m-p/292405/thread-id/63