I purchased the Thomas Nelson logos professional edition in about 2000 while attending bible school,and i ALSO purchased the word commentary as it was required for bible book studies. I was able to afford this because i was attending under VA Vocational Rehabilitation, book are bulky to move multiple times a year, so i opted for DIGITAL BOOKS, NOW with this new owner, all registrations are lost, they have eliminated over half my digital library, i no longer have any commentary, and the irony of all things, it only works online, news flash folks, not all of the reached world has internet access, i had a offline program that worked well, this new one overwhelms you with what you do not need or do not want. Its like my library was stolen by the new owners of the Logos software. I was happier than a hog in a wallow with my former program. This new one unless they have made new changes since i last dealt with it is worthless and a waste of my time. it takes all day to try to sort and research just programming it to try to get it to work. The old product worked much better and worked offline, which helps when doing missions works. or study where internet is minimal or non existent. Somebody did not think that choice thru very well