More than 170,000 people are coming to San Francisco for Salesforce's blockbuster event this week - here's what to expect

Salesforce's huge annual conference, Dreamforce, is coming back to downtown San Francisco for the 14th time this week.

Everything about Dreamforce is over the top: More than 170,000 people from 83 countries are expected to come and be part of the 3,000-plus speaking sessions.

That makes Dreamforce one of the largest tech events in the world. According to the San Francisco Travel Association, this year's event will have an estimated $263 million economic impact in the Bay Area.

Some people call it the Woodstock of the software industry.

But more than anything, Dreamforce is a great marketing event for Salesforce to meet with its customers and developers, while raising its overall brand awareness.

Here's everything you need to know about this year's Dreamforce: