This introductory chapter establishes the non-negotiable practical skills that underpin every experiment in the manual. It covers the correct use and care of common volumetric glassware — burette, pipette, volumetric flask, and conical flask — with emphasis on rinsing protocols, reading at the meniscus, and avoiding parallax error. The chapter introduces the concept of measurement uncertainty, explaining why each piece of glassware has an absolute tolerance and how these tolerances combine to give an overall apparatus error. It provides mandatory laboratory safety guidance, including the minimum required PPE (lab coat, safety spectacles, gloves), the handling of corrosive and toxic reagents, and the importance of working in a well-ventilated area. The chapter concludes with guidance on scientific record-keeping: how to tabulate observations, express results with appropriate significant figures, and write clear, reproducible procedures.