Here are, in no particular order, the top 10 tasks for which I use Logos Bible Software. Most of these uses are for preaching and teaching preparation, or for when I’m preparing to lead a Bible study. This post is a visual tour, so if you want to see any image in more detail, you can click to enlarge it or open it in a new tab or window.
10. To look up a word in a dictionary.
Here’s a word l00k-up in the Anchor Yale Bible Dictionary, which I can do from an already-open text, or as a stand-alone, searchable dictionary. Here I move from the article on Jesus I was reading to an article on “Tax Collector”:

9. To annotate commentaries.
Here you can see both highlights (which sync seamlessly across devices) and a notes icon from where I have recorded my own reactions:

8. To create (and then search) my own defined collection of resources.
This way I can search through all the volumes I have of the Dietrich Bonhoeffer Works:

7. To navigate through a book via Table of Contents sidebar.
As at left here:

6. As a portable library.
Here’s the searchable library view in Logos in iOS, where one can access almost all of one’s library. In iOS you can access all of your resources with an Internet connection without having to download them. You can also download them, so that you don’t have to use data or a wireless connection. I like the flexibility that offers.

5. For keyword searching a commentary.
This is particularly useful when I want to know not just what a commentary says about a passage, but how it traces a theme throughout the book.

4. Via Logos’s Biblia.com, for quick reference to my Logos library from anywhere with Web access.
Here I am looking at the Odes in Greek and English translation:

3. For pulling up at once all I have in my library on a given passage.
Logos’s Passage Guide is available on whatever device you have Logos in; here it is in iOS. Using a split screen, I can read one commentary (and highlight it), as well as see other hyperlinked options to explore:

2. For touching footnotes to pull them up.
This I can do in iOS:

1. For reading through a book of the Bible, with help.
Here is a layout I used often for when I read with a group of folks through Greek Isaiah in a Year. I could compare multiple Greek texts, a Hebrew text, English translations, lexicons, notes, and more:

The major advantages in Logos are its connections of resources to each other, system of hyperlinks, and ability to sync (notes, highlights, and where you left off reading) across devices. Not only that, but even compared to Amazon Kindle and iBooks, they have the most extensive store/library of resources for biblical studies that I know of. There’s a lot more you can do in Logos than what I’ve highlighted above. You can find all my Logos reviews gathered here.