Databricks have just published a free e-book entitled “Apache Spark Analytics Made Simple”. Contents include

• An introduction to the Spark API for analytics
• Tips and tricks to simplify unified data access
• Real-world case studies of how various companies are using Spark with Databricks to transform their business

There are more to come. Titles are

• Mastering Advanced Analytics with Apache Spark
• Lessons for Large Scale Machine Learning Deployments on Apache Spark
• Building Real-Time Applications with Spark Streaming