I believe that collections would be easier to understand and use, if they had tooltips. A tooltip is a small window where a brief description of the function of a button, panel, window, appears when the user hovers the mouse cursor over it. They are present in most applications.
I note that Lightroom does not appear to have them at all!
Personally, I would find them useful, especially when looking at collections. Unless the title is made extremely long, it may not be immediately obvious what the collection is of. A tooltip that the user could define when creating the collection would, in my opinion, make them much easier to use. I also feel that Lightroom would benifit from them generally.
I note that Lightroom does not appear to have them at all!
Personally, I would find them useful, especially when looking at collections. Unless the title is made extremely long, it may not be immediately obvious what the collection is of. A tooltip that the user could define when creating the collection would, in my opinion, make them much easier to use. I also feel that Lightroom would benifit from them generally.