This paper discusses RedisGraph, the graph database module for Redis. RedisGraph has a major point of distinction from other graph products. This is that, apart from operating as part of the Redis platform, it represents and stores graphs as sparse adjacency matrices instead of adjacency lists. This enables much faster ingestion and query performance than would otherwise be the case. The product itself is a property graph, and queries are written in (a subset of) the Cypher query language.