Mostly Harmless Econometrics: An Empiricist's Companion, Joshua D. Angrist, Jörn-Steffen Pischke, 2009 (Princeton University Press) - A widely-used textbook that provides an accessible introduction to causal inference methods in econometrics, including discussions on selection models and their identification challenges.
Generalized Control Functions with Machine Learning for Causal Inference, Xinyi Nie, Michael I. Jordan, and Stefan Wager, 2020Advances in Neural Information Processing Systems, Vol. 33 (NeurIPS) - Explores how to extend and apply control functions, including those for selection bias, using flexible machine learning methods to improve causal effect estimation.