Here is the release overview presentation with screenshots highlighting the important features and functionalities introduced in Salesforce Spring 18 Release

For videos, release notes and other resources on Spring 18, please navigate to URL http://www.salesforce.com/customer-resources/releases/spring18/

And here is the list of past release overview decks

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