was a hybrid with Comic-Con's Souvenir Book with cover art by Alex Ross, in full color and exclusive to Comic-Con attendees. Exhibitors A large number of exhibitors from art, comics, games, film, TV, and publishing are at Comic-Con. There are three types of exhibitors at San Diego Comic Con. Inside the convention center, which requires a badge to visit during the convention, includes artists alley and the main exhibitor hall. Artist Alley is for up and coming artists who are new to the pop culture world by selling their new books, comics, toys, and or services. They range from local companies and businesses in Southern California to international ones, but are mainly private endeavors. Artist Alley is usually located in Hall G of the convention center. Spaces for these exhibitors are highly sought after and are on a lottery and need-based system. The main exhibit hall, which includes larger well-recognized companies, takes up halls F through A. These companies sell or promote new and upcoming movies, television shows, and video games as well as featuring toys and exclusives with many selling for hundreds or even thousands on the secondary markets outside the convention. Some notable recurring companies include Lego, Hasbro, Funko, Hallmark Cards, Nickelodeon, Cartoon Network, The Walt Disney Company, and Blizzard Entertainment. Off site The other type of exhibitors include offsite exhibitors, booths and events which are located outside the convention center. These locations are usually within walking distance of the convention center but have been moving into nearby parks in recent years. Some notable examples include Gaslamp Quarter, San Diego, Petco Park, and Children's Park (San Diego). In recent years, these offsite events have no connection to SDCC. In the past, most sites have not required a Comic-Con badge. In 2017, one example was a virtual reality and immersive set based on the movie Blade Runner 2049. In 2018, these examples included a Taco Bell Demolition Man themed pop-up restaurant in the Gaslamp; and a Shake Shack Bob's Burgers themed pop-up restaurant in Mission Valley. However, there are some official offsite events that require a badge. In 2018, it was estimated that nearly 200,000 people will be in Downtown San Diego due to Comic-Con related exhibits and events. Overcrowding Capacity attendance at Comic-Con in 2006 and 2007 has caused crowding issues. Concerns have been raised that the event is possibly too large for the San Diego Convention Center,