Key attributes for people entering this trade are manual dexterity, excellent color and artistic aptitude. Good physical condition is important because the work often requires considerable standing, kneeling, and repetitive activities such as brushing and rolling. Commercial Painters must have an eye for detail, the ability to plan work and the knowledge of many types of finishes, their properties, and their applications. Painters must be able to calculate areas and relate such calculations to required materials. Good communications and customer service skills are required by Painters who often interact with home/business owners, contractors, interior designers and architects. Basic computer skills are gradually becoming a necessary occupations skill for communications, research and design. Due to technological advances in the industry, ongoing training in new materials and their applications is critical. Most painters learn through on the job learning and by working as an apprentice with an experience journey worker. This is accomplished through a combination of related instruction.