must-read political books. oklahoma university president and former senator david boren on his letter to america. also rare books from the history of science collection at ou. and sunday at 5:00 p.m. eastern, oklahoma history on american history tv on c-span3. tour the oklahoma city bombing memorial with co-designer tori. plus a look into african-american life in 1920s oklahoma and native american artifacts from the special collections at the oklahoma history center. once a month c-span's local content vehicles explore the history and literary life of stories across america. this weekend from oklahoma city on c-span2 and 3. >>> sunday on q&a -- >> i don't regard this as just the biography of lyndon johnson. i want each book to examine a kind of political power in america. i'm saying, this is the kind of political power. seeing what a president can do in a moment of great -- in a time of great crisis.