This report provides an overview of business administration principles, using Aldi, a multinational company, as a case study. It covers several key units, including delivering presentations, handling mail, storing and retrieving information, maintaining stationery and supplies, and using word processing software. The report analyzes various aspects such as presentation methods, audience engagement, contingency planning, and evaluation techniques. It also explores mail handling procedures, including dealing with junk mail, franking machines, and package preparation. Furthermore, the report discusses information storage systems, legal requirements, and search techniques. It also covers the management of stationery and supplies, including stock checks, ordering processes, and supplier evaluation. Additionally, the report touches on resolving customer complaints, leadership principles, and performance management. The report incorporates relevant organizational policies and procedures, and concludes with a summary of the key findings.