DIO contents&links and Free Booklet-PDFs
Editorial Board
Instructions for authors
Subscribing to DIO
About DIO
Dennis Rawlins
DIO's Thousand-Dollar Prizes
Eminent scholars' comments on DIO
Ancient Star Catalog
Farnese Globe
DIO Rules for Written Debates
Aubrey Diller's edition of Ptolemy's Geography, Book 8
From Newton to Neptune: History of Astronomy essays by N.Kollerstrom