One lecture that you can summarize is the one that will be delivered by Dr. Perry llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

write sum from those pitcures at least 2 pages