List of Topics

  • Experiment! series
  • Discovering Our Universe series>
  • Could You Ever? series
  • Beyond 2000 series


The Encyclopedia of Science, with more than 12,000 articles is now in its 17th year online. It covers all aspects of physics, astronomy, chemistry, biology, medicine, mathematics, science fiction, and the history of science.


The Encyclopedia of Alternative Energy and Sustainable Living, which includes 1,000 articles, covers a full range of green subjects.


The Encyclopedia of History, with more than 400 articles, spans topics from the dawn of culture to the modern age.


The Encyclopedia of Modern Music contains more than 800 articles on all aspects of musical theory, types, instruments, sound engineering, and performance.


The Children’s Encyclopedia of Science contains a range of resources aimed at younger readers. It is largely based on David's books for juveniles.