Slack Welcomes Microsoft to Messaging With Full-Page Letter That Echoes Apple's Famous 'Seriously' Ad

Ahead of Microsoft's event

Slack founders are taking marketing lessons from Steve Jobs.

AW+

WORK SMARTER - LEARN, GROW AND BE INSPIRED.

Subscribe today!

To Read the Full Story Become an Adweek+ Subscriber

View Subscription Options

Already a member? Sign in