I would like to know all the collectable items from all the elder scrolls gamer including mobile, past, spin off and present games including manuals, figurines, art books, maps ect. also I would like to know all the out of game information that the developers have given to the community including any that are or are not located on the imperial library, thank you.

There are dev diaries about the Morrowind and Oblivion Collector's Editions, along with all the swag. Off the top of my head I can't remember similar things for prior games although some basic editions did come with special stuff, like Redguard's map.

http://www.elderscrolls.com/codex/team_collectors_ed.htm
http://www.elderscrolls.com/codex/team_obliv_cediary.htm

I'm not aware of any missing lore on the Imperial Library, but UESP.net does contain a lot of basic game information that isn't at the Library.