I have recommended Logos Bible Software several times, both here and on Facebook. It is the software I use for research and writing. It is, in my opinion, the best in today’s market, offering the most advanced level of resources and technology.
If you are interested in the latest iteration of Logos, known as Logos 9, you can click on the link below to check it out. If you decide to make a purchase, a 15% discount is available until February 1. In addition to the discount, you can select five free books.