Author Walter Dean Myers Says 'Reading Is Not Optional' for Kids

A woman looks at a book in the "aMAZEme" labyrinth at the Southbank Centre in London on Tuesday. Brazilian artists Marcos Saboya and Gualter Pupo used 250,000 books to create the maze, which will be on display through Aug 25.

Performers practice the dance of Caporales during Saturday's Folkloric Dance Festival in La Paz, Bolivia.

Construction workers add the final touches Thursday on a statue depicting Nelson Mandela outside Howick, South Africa. The monument will become part of [the Capture Site, the museum which sits on the spot where Mandela was arrested on Aug. 5, 1962.

A mural depicting Jamaican sprinter Usain Bolt looks over east London on Thursday, two days before the start of the London 2012 Olympic Games.

Soldiers check a clown's car during a parade Tuesday in Guatemala City, the site of the fourth annual Latin American Clown Congress. Clowns from Central and South America and the Caribbean are gathering for three days to exchange ideas and attend workshops.

Elton John spoke to AIDS advocates from around the world as the keynote speaker for this year's International AIDS Conference. Gwen Ifill talks to Sir John about his new book, "Love is The Cure," and his approach in helping fight the AIDS epidemic, which focuses on compassion, dignity and love.

Elton John faced a very different kind of crowd this week. Instead of thousands of screaming fans, he addressed U.S. senators, international health workers and advocates about an issue close to his heart: the AIDS epidemic.