Spark offers Scala, Python, Java, and R APIs. Scala & Python are the most viable options (R lacks a lot of features and Java is only good for ppl that love Jav

Spark offers Scala, Python, Java, and R APIs. Scala & Python are the most viable options (R lacks a lot of features and Java is only good for ppl that love Java). Scala & PySpark are both great options. Lots of devs are terrified of Scala, so PySpark is more popular now. I'd say Scala has a slight technical advantage, see here for more details: https://mungingdata.com/apache-spark/python-pyspark-scala-which-better/ https://mungingdata.com/apache-spark/python-pyspark-scala-wh.... Both are great overall. I wrote a book that's a practical introduction to Spark: https://leanpub.com/beautiful-spark/ https://leanpub.com/beautiful-spark/ Most of the training materials are theoretical, which makes Spark seem really intimidating. You can learn some basic Spark principles and get up-and-running with production workflows quickly.