Book launch is supposed to get the hype in lieu of a new volume edition in order to catch the attention of the social media. It is supposed to bring awareness to anyone who may see the personal relevance of the book in their lives.  Or maybe grasp the difference between an autobiography and a mere run of the mill type of book that adds to the growing number of great book of our times.    The impact then will entice them to buy the book and hunger to know what it is all about.

But it all depends on the aspect of marketability.   How you have reached to as many people inviting them to attend this event can make an outstanding positive outcome of the gathering.   It pays to know a lot of people and how they have impacted your personhood in their day to day living enough to give in  to your invitation.