Interior designers are people skilled at using the elements of design and organizing interior spaces in functional and aesthetic ways. They may offer advice on the layout of spaces, building and technical issues such as lighting, sound, and temperature control.

They must have professional knowledge of issues affecting the physical comfort, safety and convenience of an interior’s occupants. Also they must be familiar with local building codes, government regulations and have drawing and presentation skills.

Important concepts in interior design include color selection, color palettes and how they affect the perception of space and mood, spatial organization, knowledge of fabrics, finishes, design styles and trends.

In order for interior designers to do a perfect job, they must follow the steps in the design process:

• First, designers usually interview the client and ascertain their design preferences, needs and budget. Then they may do work on feasibility (prospect) studies, space planning and layout, design idea, selection of finishes, furniture, art, accessories, project management and bidding.
• Next, the schematic (planning) phase, designers work on the following activities: drawings and sketches (quick drawings) of proposed floor plans, perspectives, elevations and details. The drawings most often made by interior designers are floor plans, architectural details, lighting and ceiling plans, and furniture layout. Interior designers discuss all their plans with the client.
• Once the plans are approved, the designers can move ahead with a schedule of work and schedule of finishes, ordering furnishings and contacting and/or hiring contractors and subcontractors. Interior designers help oversee the work that is done and placement of the furnishings.
• Designers are expected to keep the client updated about the work done, any changes, budget and time considerations.
• Once the job is complete, the interior designers must get final approval and then receive payment. Photos may be taken for a portfolio and testimonials and/or references requested.