Most vacancies consist of two specialisms / areas of expertise, such as ‘Chemistry Analyst ‘, ‘HR Secondment Manager’ and ‘Fiberglass Planner’. The vacancy for Fiberglass Planner for example consists of the specializations / fields “Planning” and “Fiberglass”. This means you will need to research both topics thoroughly.
Only checking Wikipedia won’t be sufficient for this kind of research. In order to really have added value in conversations with your candidates and your clients, you will need to base your knowledge on as many sources as possible. This includes customer-specific websites, manuals, job descriptions and even YouTube.
In short: Truly be the owner of your vacancy and you will see that you will finally really connect with your candidate.