I've read many books on Scenarios - including van der Heijden and Ringland's - but this is the first book, ever, where I think I have learnt how to do a scenario intervention without using an external facilitator. All the detail is here - and more. I especially liked the emphasis on giving the deatail of the intuitive logics method and the ways that this can be supplemented - to think of issues of corporate responsibility and with how to anticipate rare high-impact events. Major insights here for me.