In this Neo4j and Scala series, the authors discuss combining Neo4j with Apache Spark for data processing. To start using Spark, developers must download Apache Spark 2.0.0 and set the `SPARK_HOME` path in their `.bashrc` file. With these steps complete, they can use the Neo4j-Spark Connector to process data from Neo4j. The authors also provide a recap of previous blog posts on getting started with Neo4j and Scala, as well as using Spark for data processing.