The dictionary meaning of interior design “The design and coordination of the decorative elements of the interior of a house, apartment, office, or any structural space, including color schemes, fittings, furnishings, and sometimes architectural features.” So, Interior designing is designing your space in the most efficient manner by the experts who possess complete knowledge, study and experience to do the required task .Interior design firm gives all the look and feel to your space. How comfortable and how you want your space to be. The profession of interior design has been a consequence of the development of society and the complex architecture that has resulted from the development of industrial processes. The pursuit of effective use of space, user well-being and functional design has contributed to the development of the contemporary interior design profession. The profession of interior design is separate and distinct from the role of interior decorator. Decoration is the beautifying or furnishing of a space with fashionable or beautiful things. Whereas interior designer will decorate the entire space from the scratch. Interior designers work on theme basis and will do the complete space from the scratch. The scope of interior designer includes, flooring, pop, paint, bathroom designing, bedroom designs, wardrobe designs, electrical, plumbing, modular kitchen, designer beds, lcd cabinets. In short, interior designers may decorate, but decorators do not design. These are the following aspects that interior designer takes into consideration before they start designing: Space is the most important aspect of interior design. Space creation and utilisation is one major aspect for which people hire an interior designer, who has an expertise. Space is basically 2D and 3D. Two -D space includes length and width, which covers the floor and Three D Space includes length, width and height and forms the living space. There are two kinds of space Positive space and negative space. A positive space is a space which is filled with furniture and other items whereas negative space is which is left empty. A balance has to be maintained between the positive space and negative space. Even if all the other factors are fulfilled from the aspect of interiors, and there is overcrowding of furniture in the home it will affect the balance. If the space is planned well, it can do wonders. Color is a powerful design tool in decoration, as well as in interior design, which is the art of composing and coordinating colors together to create a stylish scheme on the interior architecture of the space. Colour can be chosen as per the psychology of a person. Red colour is good for dining rooms, while green can be used in bedrooms.The colour is broadly classified into primary colors and secondary colors. Light plays yet another important role in interior of the space. Be it natural or man-made. Without proper lighting all the other aspects of interior will not stand out. Different types of lights can be used such as table lamps or bed side lamps for a specific purpose. Different colours of lights can be used for setting the mood of a person. At times, we use light for highlighting a particular picture like spot lights. Texture is mainly used for surfaces – how a particular surface will look and how to feel it. It adds depth to a surface and make it look different. It gives a special effect to the overall look of a space. TO avoid monotony of single colours, contrast textures can be used. Pattern is one thing where the creativity on interior designer comes in. It adds life to the interior design. It can be of any shape or size. Patterns are used on wall paints or any decorative surface. Lines defines shapes and play an important role in interior space. Lines are of 3 types- Horizontal, vertical and dynamic. Horizontal lines refers to structures like beds, tables chairs etc. Vertical lines refers to wardrobes, doors windows etc. Dynamic lines can be seen on stairs. An interior designer should know how to use these lines.