What is Reddit's opinion of Biblical Hebrew Vocabulary?

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I would also recommend some flashcards to practice vocabulary when you're in places where you can't open a book. Vocabulary apps for your smartphone are also good.

https://www.amazon.com/Testament-Hebrew-Vocabulary-Zondervan-Builder/dp/031025986X/ref=sr_1_1?ie=UTF8&qid=1488865814&sr=8-1&keywords=biblical+hebrew+flashcards

https://play.google.com/store/apps/details?id=com.sandcreeksoftware.hebrewVocab

While not necessarily a book I recommend this app. I have been using it to keep my Hebrew sharp. https://play.google.com/store/apps/details?id=com.sandcreeksoftware.hebrewVocab