Bandai Namco Film Works today announced the release of "The Big-o 25th Anniversary Negotiation Files," an official design works collection book commemorating the 25th anniversary of The Big O anime series. The Big O is a 26-episode TV anime series produced by Sunrise (now Namco Bandai Film Works). The first season aired for 13 episodes from October 1999 to January 2000, followed by the second season with another 13 episodes from January to March 2003. The retro-style stylish design and the incorporation of elements from American comics and cartoons made the series popular not only in Japan but also overseas. Sunrise's official English website for the series describes the anime's synopsis as such: Forty years ago everyone in Paradigm City lost their memory. But humanity continues to survive. They’ve learned to operate machinery, produce electricity, and go on living from day to day. Roger Smith is a Negotiator. He controls the Megadeus called the Big O.