Recently, I received an e-mail from the webmaster of A Gazeta de Algol, a Brazilian Phantasy Star fan site. The Brazilian fan community gathered together to get a copy of the book commonly known as the Phantasy Star Compendium and scan the entire thing. They've put it together in a PDF file and made it available for download. You can find a link to it here, if you're interested in looking at the book:
http://gazetadealgol.com.br/downloads/index.php