The coordination work in the executive phase will certainly be challenging and stressful, but with a program and a check-list in your pocket you will certainly run less risk. The Best Comedians Canada provide a refreshing way to keep event participants entertained.
The first thing to start from is precisely the target audience and therefore return to the tripartite typology of corporate event. If it is a corporate event, only the employees will be the addressees of the communication. In this case it uses all the internal communication tools you have available: circulars, newsletters, mailing lists, management social media (if you use them) as slack.
Similar to the corporate event is communication for trade events. These are in fact customers and suppliers whose contacts are already known and therefore the best means available to inform them. As for the consumer event, it is instead more complex.