Neo4j is being used in various industries, including search for query expansion, recommendation engines, and visualizing hypergraphs of different subjects. Ashleigh Faith, a knowledge graph expert, has been using Neo4j for several years and has presented at the NODES Conference on its applications. She credits David Meza, Chief Knowledge Architect at NASA, with introducing her to Neo4j and inspiring her to pursue a PhD in the field. The Neo4j community is described as welcoming, with no such thing as a "stupid question." Ashleigh's favorite part of working with knowledge graphs is their ability to replicate human thought processes, making it easier for machines to understand complex concepts. She believes that graph technology will impact industries such as supply chain management, personal data protection, and water supply management in the coming years. Ashleigh has been honored with a Graphie Award, which she attributes to her passion for the field and her desire to demystify graph technology for others. She emphasizes the importance of showing the value of knowledge graphs rather than just presenting them as a solution.