I typically use commentaries as a reference, but this was one of the few I read cover-to-cover. It is an amazing in-depth dive into the first six chapters of Genesis. I first heard of this work in an interview between Tim Mackie and NT Wright who both recommended it.
Cassuto's research and perspective on the Genesis account was a major paradigm shift for me. Growing up in my church tradition, I often felt Genesis was either avoided or taught in a way that was missing the point. It was taught completely devoid of ANE historical and literary background. Unfortunately, these chapters often fall into a modern debate between creationist theory and evolution thereby throwing a blanket over the real principles presented in Genesis.
Cassuto explores the origins of the text, the surrounding ANE influences the Torah is trying to address, how the literature of the Israelites sages compared to that of the latter poets/prophets, and debates around difficult passages. He surfaces why the Torah is written the way it is and puts its literary style in its proper place in history. His discussions on Canaanite/Babylonian creation accounts, allegories and parallels, significance of the garden of Eden, mankind being in the image of God, the serpent motif, numerology, and Nephilim are all fascinating and handled with the utmost care.
This gave me plenty of additional research points, and I won't look at Genesis the same way again.