So, move author into ascii? Most 30040s won't be cohesive documents, like an original book, but rather someone's personal compilation of documents or snippets. A sort of remix. They won't have an author, but the 30041s might and they'd probably have author in the ascii or the form would get really messy.

Right now, these are the mandatory tags (we need "d" and we need "title" to make "d"):

[ "d", "" ],

[ "title", "" ]

And these are the optional ones:

[ "author", "" ],

[ "i", "isbn:9780765382030" ],

[ "t", ""],

[ "published_on", "" ],

[ "published_by", ""],

[ "image", "" ],

[ "summary", "" ],

[ "version", "" ]