An aid to solving crosswords. It contains over 100,000 potential solutions, including plurals, comparative and superlative adjectives, and inflections of verbs.

Writing at the time of political and social crisis in Athens, Aristophanes was an eloquent yet bawdy challenger to the demagogue and the sophist. The Achanians is a plea for peace set against the background of the long war with Sparta.

Artificial Intelligence: A Modern Approach offers the most comprehensive, up-to-date introduction to the theory and practice of artificial intelligence.