The late Douglas Adams was the best-selling author of The Hitchhiker's Guide series, including "Mostly Harmless." He also wrote Dirk Gently's "Holistic Detective Agency" and "The Long Dark Teatime of the Soul" and co-wrote "The Deeper Meaning of Liff" with John Lloyd and the travel and wildlife book "Last Chance to See" with Mark Carwardine. He has sold over 15 million books in the UK, US and Australia and is a bestseller in German, Swedish and many other languages.