A consultant is usually an expert or a professional in a specific field and has a wide knowledge of the subject matter.[2] A consultant usually works for a consultancy firm or is self-employed, and engages with multiple and changing clients. A consultant is usually an expert or a professional in a specific field and has a wide knowledge of the subject matter.[2] A consultant usually works for a consultancy firm or is self-employed, and engages with multiple and changing clients. A consultant is usually an expert or a professional in a specific field and has a wide knowledge of the subject matter.[2] A consultant usually works for a
