Below are major authors in the options space (with the year of their hardcover/paperback publications). All of these books help to reinforce and deepen information presented in SpotGamma materials and discussion:

• Augen, Jeff (2008) The Volatility Edge in Options Trading
• Baird, Allen (1993) Options Market Making
• Bennett, Colin (2014) Trading Volatility
• Boyle, Patrick (2020) “Statistics for…” and (2020) “Derivatives for…“
• Cottle, Charles (2010) Options Trading: The Hidden Reality, 2nd ed.
• Coulling, Anna (2013) A Complete Guide to Volume Price Analysis
• Dalton, James (2013) Mind Over Markets
• Derman & Miller (2016) The Volatility Smile
• Gatheral, Jim (2006) The Volatility Surface
• Krishnan, Hari (2017) The Second Leg Down
• Lebron, Augustin (2019) Laws of Trading
• Michael Khouw & Guthner (2016) The Options Edge
• Mandelbrot, Benoit (2004) The (Mis)behavior of Markets
• McMillan, Lawrence (2012) Options as a Strategic Investment, 5th ed.
• Murphy, John (1999) Technical Analysis of the Financial Markets
• Natenberg, Sheldon (2015) Option Volatility & Pricing, 2nd ed.
• Passarelli, Dan (2012) Trading Option Greeks, 2nd ed. 
• Schwager, Jack (2001, 2006, 2008, 2012, 2014, 2020) “Market Wizards series”
• Sincere, Michael (2021) Making Money Trading Options
• Sinclair, Euan (2010, 2013, 2020) Positional Options Trading, etc
• Taleb, Nassim (1997, 2004, 2012) Dynamic Hedging, etc
• Wyckoff, Richard (1916) Studies in Tape Reading.