In this episode of Code Coverage we talk to Eliot Harper (@eliotharper), CTO at Digital Logic, a Marketing Services company based in Melbourne, Australia. Eliot describes himself as a customer journey practitioner and is author of Journey Builder Developer's Guide http://amzn.to/1a9gWNo; an in-depth book on customer journey integration with Salesforce Marketing Cloud.   Eliot orientates us to Journey Builder development, covering:   * A brief orientation to Salesforce Marketing Cloud * The Customer Journey Revolution * Journey Builder * Customer Journey Applications * Interaction Components * Workflow Document Format (WDF) * Custom Activities