This week in Neo4j covers various topics including modeling complex financial instruments using the graph database, loading streaming data into Neo4j, solving a Rubik's cube and shuffling a pack of cards using random walks, and using Kettle as part of an ETL process. The featured community member is Ron van Weverwijk, a long-time member of the Neo4j community who has given training sessions and contributed to the APOC library. The Graphistania podcast also features an interview with Johannes Unterstein, a Software Engineer working on the Neo4j Cloud product, discussing his experiences and insights on managed services and cloud computing. Additionally, there are updates on various projects and tools such as Graphileon's new bookmarking functionality, Joy Chao's blog post on triadic closures, and the Neo4j Spark Connector for loading JSON data into Apache Spark DataFrames.