Verbatim is great for virtual performances. However for live, I have to agree with SalomonV and say that the Zandman book test (Gatsby & Sherlock on Theory11) is better. I own Gatsby and I have so much fun with it.
With Verbatim, the performer goes through the pages of the selected book and finds and suggests a lot of good, big words for them to choose from. There is one method with Gatsby that is similar, but much, much better.
Instead of the performer picking and suggesting up good words from the pages with Verbatim, for Gatsby or Sherlock, the performer riffles through the book, the spectator says stop whenever they want to, and from that stopped page, the spectator freely selects a word on their own (not the top right corner word).
With Gatsby & Sherlock, doing this bonus method, the performer never looks inside the book. In fact, the performer can do this one with his or her eyes completely closed the whole time. Because the spectator is freely selecting a word on a page they stopped at, it makes it much more impossible and magical.
If you already own any of the Zandman books from Theory11, I would stick with those for live. I would only (probably) purchase Verbatim if I was planning to perform a book test virtually.
Bottom Line: Skip Verbatim. The bonus trick/method from the Zandman books tops Verbatim for in-person performances.