Like Marketing, Sales, Manufacturing, Customer Service, and Finance, HR is also an evolving subject. Every day, new concepts, rules, and regulations emerge. Much depends on what your break period was like. There are sites like
sightinplus where articles keep appearing. Download and read. What were your core areas of involvement before your break? There are many sub-skills in HR—from Recruitment to Retirement or Hiring to Firing—such as Competency Mapping, HR Scorecard, Performance Management System, 360-degree Feedback, Employee Engagement, Counseling, Industrial/Employee Relations, HR Business Partner role, and HR Data Analytics. The list is pretty long.
Best wishes,
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