The author of the blog post, Peter Bell, reflects on his experience creating a one-day training class for Neo4j, a graph database. He notes that Neo4j has come a long way since its inception and is now accessible to developers with diverse backgrounds. Cypher, Neo4j's query language, allows users to write simple and declarative queries to traverse graphs and gain insights into data. The author highlights the power of Cypher and its similarity to SQL for graphs. He also mentions that graph databases are increasingly being used in various industries such as recommendation systems, route planning, access control, and bioinformatics. The training class was a success, with attendees feeling confident in their ability to build non-mission critical apps using Neo4j. Peter Bell's experience demonstrates the growing applicability of graph databases and the importance of accessible tutorials like his.