International Photographers Association of Los Angeles 洛杉磯國際攝影家協會

Thanks to 呆呆 who called to the attention of this Lecture Series:

http://annenbergspaceforphotography.org/events/iris-nights/upcoming

All free lectures and sell out almost immediately the moment it goes on sale. Hence they implement a policy that splits the ticket sale up in two time slots and after Wednesday's tickets sell out online, there will not be any other tickets available until the Thursday, the next day and the Thursday batch opens online at 9:30am PT. Good luck and report back if you're lucky to get a ticket.

James P. Blair
Being There
Thursday, March 20th, 2014 • 6:30-8:00pm
Online registration for this event opens Wednesday, March 12th at 12pm PDT and Thursday, March 13th at 9:30am PDT

Chris Johns
Looking Beyond 125 Years
Thursday, March 27th, 2014 • 6:30-8:00pm
Online registration for this event opens Wednesday, March 19th at 12pm PDT and Thursday, March 20th at 9:30am PDT

Vincent J. Musi
Taming the Wild
Thursday, April 3rd, 2014 • 6:30-8:00pm
Online registration for this event opens Wednesday, March 26th at 12pm PDT and Thursday, March 27th at 9:30am PDT

Gerd Ludwig
Winds of Change
Thursday, April 10th, 2014 • 6:30-8:00pm
Online registration for this event opens Wednesday, April 2nd at 12pm PDT and Thursday, April 3rd at 9:30am PDT

Cory Richards
BorderLands
Thursday, April 17th, 2014 • 6:30-8:00pm
Online registration for this event opens Wednesday, April 9th at 12pm PDT and Thursday, April 10th at 9:30am PDT

Patricia Lanza
On Location
Wednesday, April 23rd, 2014 • 6:30-8:00pm
Online registration for this event opens Wednesday, April 16th at 12pm PDT and Thursday, April 17th at 9:30am PDT

I think this FAQ applies to all lectures in the series:

The FAQ says you can standby on the day of the lecture:

http://www.annenbergspaceforphotography.org/about/faqs/#irisnights

Q: Am I able to attend an upcoming Iris Nights lecture if tickets for the event are no longer available online?
A: A standby option is available for those who would like to attend lectures for which online tickets are no longer available. Our standby list opens at 5pm at Skylight Studios on the day of the lecture. Please note that you must be at Skylight Studios in person to put your name on the standby list. It has been our experience that we are able to accommodate most standbys for each lecture.

Or you can just watch the event on line at http://www.annenbergspaceforphotography.org/live

Even after that event, you can see all the past lectures:
http://www.annenbergspaceforphotography.org/events/iris-nights/national_geographic_125/184