The 20 fastest-growing skills in the freelance job market, according to Upwork — and the online courses you can take to learn them

Database Clinic: Neo4J, available at LinkedIn Learning Neo4j: GraphDB Foundations with Cypher, available at Udemy

Read more: https://www.businessinsider.com/best-online-classes-for-freelancers#13-salesforce-lightning-13  

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