We seem to have the same issues. I have asked the person in charge of the adult education ministry if the library can have copies of the books they are doing for studies and she was more than happy to get them out of her office. Perhaps your group leaders would feel the same if you approach it like you are doing them a favor. We are trying to present the library as the central hub for all their Christian education needs. It is difficult as most people are out of sigh out of mind when it comes to going out of the way for the library. We have added hours at night when there are church activities. We have tried to update the social media of the church and visitor and new member information but still most people response is we have a library? Who knew? A new idea we may try is to purchase books on behalf of congregation members to mark events like you joined our church this books was purchased on your behalf, you got married here we purchased these marriage materials on the behalf of the couple, had a child baptized in the church another book is added and so on. It shows connection and growth and commitment ideally. That the church and it s members are there for all phases of your faith journey. We meet later this month to discuss the idea so I will let you know how it goes when we present it to the board. Right now we are on the 2nd floor of the church so we are in the same kind of situation. Nice collection, good space, but not well used. We too are trying to figure out how to embrace the e-books issues.