Books on this site come from two sources:

  • Books published before 1921 and therefore are no longer under the original copyright.
  • Books published after 1921 and we have licensed those books by the copyright owner (usually either a publisher or the author).

In either case the derivative materials appearing on this site are © Copyrighted by StasoSphere, unless specified otherwise. The derivative materials are the result of time and money invested in scanning, OCR-ing, processing, and arranging the resulting text and illustrations for your reading pleasure. If you have further questions, please contact us at StasoSphere.