As my collection has grown, when I search for commentaries on a portion of scripture, it is not unusual for me to be unsure which commentary the one entitle "Luke" might be. Commentaries usually have titles which are very similar. When I build a PBB I usually add the author's name onto the title. I would love to be able to do that with books I have purchased. Perhaps the owners do not want the title changed. Such a label could be distinguished from the publishers title by parenthesis, a different font or font color. On my book shelf I usually see the title and author all in a single glance. I find this inability to do that in Logos an annoyance. Yes, I know I can put my cursor on it to see more info, but that takes some of the time Logos is designed to save me.