For short intro I would point to “Learning Spark, 2ed” - it was available for free from Databricks site (maybe still available, look via Google) - it gives intr

For short intro I would point to “Learning Spark, 2ed” - it was available for free from Databricks site (maybe still available, look via Google) - it gives intro into the Spark and Delta Lake. The “Data Analysis with Python and PySpark” is a bit deeper, but doesn’t cover Delta.