Reading material on World Cafe method ( links )

 World cafe, key concepts & guiding design  principles ( 7 ) . Link . 

Design Principles | The World Cafe

The world cafe method. Hosting and facilitating collaborative discussions . 

The World Café Method: Hosting and Facilitating Collaborative Discussion - Innovation Training | Design Thinking Workshops

Linked In Advice page on World Cafe. 

How can you use the World Cafe model in facilitation? (linkedin.com)