Human Resource Management Presentation Topics statement of purpose A written statement in the form of a sales pitch or an \"advertising blurb\" proposal.. This is to include the presentation's title, its goal, key points and preliminary sources. Length: 1 to 2 pages 2. Assessment Centers Many companies rely on assessment centers in the employee selection process. Assessment centers employ a variety of techniques and observers in a closed setting to evaluate candidates. Many large organizations maintain their own assessment centers, and there are many independent centers specialized in specific business sectors. Present an overview of what takes place in assessment centers and of the landscape of assessment center service providers