My new book became available on MEAP on March 6, 2015, and the print version is expected later in 2015.
Spark and Graphs are two tools rapidly being adopted by Data Scientists. Combine them and you get the GraphX component of Spark. Written in a way that assumes minimal Scala, the book quickly brings readers up to speed on all four: Scala, Spark, definitions from graph theory, and GraphX itself. An appendix provides three quick ways to get Spark running, and the chapters provide explicit examples from the most basic up through machine learning.