I reccomend "Just Enough Scala for Spark" tutorial from Dean Wampler. It was scheduled in Strata NYC, Singapore, and San Jose. Good part: practical. No "weird" or "religion-like" stuff. Just get st done today.

It's archived in SafariBooksOnline: check https://conferences.oreilly.com/strata/strata-ny-2016/public... before applying to Safari just in case.