My experience with Flickr was a pretty straightforward one. I have never used it before, but I have used sites like Photobucket, and it proved to be very similar. Using the photo uploading capabilities of Facebook often also has prepared me to be familiar with how a site like Flickr works.
I posted a photo of myself and a few members of my family at the Harry Potter part of Universal Orlando this past August.
When it came to posting photos having to do with libraries, I have been unable to actually get to a library so I improvised with photos I already possessed that had any connection to libraries. I hope this is okay! I posted a photo of a sign at NUI Galway that I took while spending a semester there in undergrad. The sign points the way to the University's library in both English and Irish. The other photo is of my aunt's dog reading Wuthering Heights--proving that literature is important to both humans and canines alike.
My Flickr Page