An arborist is a professional who specializes in the care and maintenance of trees. They are trained to understand tree biology, health, and safety, and they often perform tasks such as pruning, planting, and diagnosing tree diseases. Arborists may work for landscaping companies, municipalities, or as independent contractors. To ensure the health of trees, arborists use various techniques and tools. They may also provide advice on tree selection and placement, considering factors like soil type and climate. Arborists often hold certifications from organizations like the International Society of Arboriculture to demonstrate their expertise and commitment to best practices in tree care.