If you are looking for Guides to get you started with Dynamics 365 Marketing you might want to take a look at these two guides, by yours truly

Real-time Marketing

Version 1.0, published June 11, 2021

Learn to build an event-based journey with digital triggers, and AI supported messaging

The Real-time marketing capabilities are currently in preview (June 2021)

Free download

Outbound Marketing

Version 2.0, published December 2020

Learn how to work with the core components of Dynamics 365 Marketing – emails, marketing pages and forms, customer journeys, segments, events, and more

Free download