Though not technically part of Zodhiates' works, this dictionary makes an excellent companion to Zodhiates' Complete Word Study Old Testament, it is a very helpful source to look up English definitions of Hebrew words. Definitions range from a couple of sentences to a page or more.
Good for us non-theologians who want to understand the Bible better. Easy to use and understand. Not sure what to compare it to, but I found it much easier to just pick up and begin using than, say, Vine's. Also, I don't typically make use of a standard Bible dictionary in my personal Bible study, but this is different because as I read a text, with Zodhiates' Complete Word Study Old Testament open, I will repeatedly use this volume to understand as I go.
Using a word study approach to Bible study not only helps you understand its meaning, but also causes you to ponder more what is being said.