Here is the release overview presentation with screenshots highlighting the important features and functionalities introduced in Salesforce Summer 17 Release

For videos, release notes and other resources on Summer 17, please navigate to URL http://www.salesforce.com/customer-resources/releases/summer17/

And here is the list of past release overview decks

  1. Salesforce Spring 17 Release Overview with Screenshots
  2. Salesforce Winter 17 Release Overview with Screenshots
  3. Salesforce Summer 16 Release Overview with Screenshots