From the online The American Heritage Dictionary of the English Language: Fourth Edition which contains “over 90,000 entries featuring 10,000 new words and senses, 70,000 audio word pronunciations, 900 full-page color illustrations, language notes and word-root appendixes.” Charts and tables represented are: Table of Alphabets; Development of the Alphabet; Books of the Bible; Three Principal Calendars; Color; Currency; Periodic Table of the Elements; Geologic Time Scale; Measurement Table; Planets of the Solar System; Proofreader’s Marks; Subatomic Particles; Symbols and Signs; Taxonomy of Life.