YAPC::NA is the annual North American grass-root Perl conference. Every year it is hosted in a different city. In 2013 it will be June 3-5 in Austin, Texas, USA.
See the YAPC::NA web site.
It is aimed at programmers, companies and freelancers, who use the Perl programming language. The conference provides attendees with a deeper understanding of Perl and its philosophy, and the opportunity to learn the latest features and techniques.
YAPCs (Yet Another Perl Conferences) have been held since 1999 and now include: YAPC::NA (North America), YAPC::Asia, YAPC::Brasil, YAPC::Russia and YAPC::Europe. Despite their obvious primary geographical structure, people from around the world attend each conference.There are usually 300 to 400 attendees at YAPC::NA, with 60-80 speakers. The speakers include those who are responsible for the design, implementation, and maintenance of Perl itself.
Talks are held in parallel, with 3-4 talks for each time slot. Tutorials and classes are also held before, during and after the conference. They are held by well-known experts, and are dedicated to deeper and more specific Perl details and applications. The conference language is English. There is a good collection of talks from previous events on yapc.tv and on Presenting Perl.
One of the key principles behind YAPC conferences is the minimal price for the attendees.