Hi all,
So I'm writing the end of HLF/moving forward report and I'm finding myself justifying a learning offer. 
One of the issues we have is that our marketing is minimal so the learning services profile is hard to raise as the general site marketing is limited and the profile low.

I'm looking for evidence (in reports/studies rather than anecdotal, I have lots of thats) that supports the notion that learning has several rewards

Firstly the much bandied idea that school audiences bringing in adult visitors on a follow up visit.
Also is there any evidence out there that learning services raise awareness of a site in general.
One of the issues I've been having is museum learning staff are generally too busy to collate/publish this stuff so its mainly anecdotal (the material that is published states this)
Does anyone know of any books that reference this kind of information? My text books are rather out of date now!
Many thanks
Janine