Consider "tree" hierarchy view for grouping

[GoogleCodeExporter]

Good idea from user via email:

"Hey,
I'm an avid reader and I enjoy this app immensely. But I have a feature I'd 
like to see. Being the voracious reader I am. I have a list of hundreds of 
books that I've read or want to read in a word document. And I have everything 
neatly nested with author being the largest nest and individual books being the 
lowest part. If you could implement a way to have books nested in an 
expandable/collapsible Author>Series>Subseries>Book tree it would make my 
massive book list more manageable in your app."

Maybe we could make tree view optional, and let user somehow define levels with 
tags? Either way, tree view seems like a great idea. Roll up into categories, 
etc.

Original issue reported on code.google.com by [email protected] on 19 Jul 2010 at 1:47

[GoogleCodeExporter]

Nesting should be straight forward to implement with metatags.

Original comment by [email protected] on 19 Jul 2010 at 10:05

[GoogleCodeExporter]

Also a user suggested an "author list view" via email. Each author, then click 
and it expands into their books. I think this is a good alternative view to 
allow (maybe not the default view, but switch to it -- and it's just another 
type of nesting).

Original comment by [email protected] on 9 Aug 2010 at 12:41