I have assembled a short list of books that I recommend.
For your convenience, I have provided links to purchase them on Amazon as well. Purchasing the books through the Amazon links also helps me keep this site active.
The American Casino Guide has information about casinos across the United States, not just Las Vegas. It also has guidance on how to play a number of casino games. The big draw for this guide, though, is the coupon section. Using just 1 or 2 coupons will usually cover the cost of the book. Those coupons are also the reason many people like myself buy the book year after year. Here is the 2019 coupon list.
If you have a lot of gaming income and expenses, I suggest getting in touch with an accountant or tax preparer with specific knowledge of the gaming rules. Tax Help for Gamblers is a good way to get started, though, and covers much of what casual and semi-pro gamblers need.
Eating Las Vegas 2019! It is a great reference for Las Vegas restaurants. Most of the reviews are Strip-based, but there are local options, too.
Scratch and Play: Test Your Blackjack IQ is a blackjack training book that gives you some basic information as well as a strategy charts for single deck and shoe games and then lets you test your knowledge with hundreds of scratch and play scenarios. You can see my review here.
On my very first trip to Las Vegas (about 20 years ago), I went from the airport directly to Red Rock Canyon for a hike. As much as I love being on the Strip, I still need to get out into nature from time to time. Best Easy Day Hikes Las Vegas is a handy reference if you want to mix a little nature into your trip.