If you in Detroit Michigan or are planning to visit in July and even if neither of these are the case you should consider visiting Detroit because DetCon1, which will be the North American Science Fiction Convention, is coming to town from July 17 to July 20. Our guests of honor are as follows: Steven Barnes, John Picacio, Bernadette Bosky, Arthur D. Hlavaty, and Kevin J. Marone, Helen Greiner, Bill and Brenda Sutton, Nnedi Okorafor, Jon Davis, Roger Sims and Fred Prophet. I am also part of the program committee of DefCon1 so please spread the word with friends and foe, protagonists and antagonists and hope to see you there. Here is the description off the convention from the website.

Detcon1 will be the North American Science Fiction Convention (NASFiC) in 2014, to be held in Detroit, MI July 17-20, 2014. The NASFiC is an all-inclusive science fiction and fantasy convention with extensive programming, many special events, and round-the-clock activities for all ages of fans and pros interested in the genre. 

DetCon1 website