One of the things I miss about Windows is the way you could select several photos while viewing a folder, and then print them on one page. This is not possible in Gnome. (It looks like KDE has a plug in for this.)
There are a couple of applications that will print multiple photos on a page. Both have an easy drag and drop GUI.
One is gnome-photo-printer. Here photos are dragged to a list.
PhotoPrint. Here you choose how many rows and columns you want on the page, and drag photos to cells.