Interior design is not only to paint a wall or to buy a furniture, like the majority of people think. You need to think in a lot of things to do a good job of interior design.

You have to know about colors, the necessities of the people, trends and what people like, how many people will use that space, there are a lot of things that you have to bear in mind.

Interior design is the art and science of enhancing the interiors.
Another lie that people think is that interior decoration is the same than interior design, but not, there are two differents things, the interior designer investigates in aspects of ambient psychology, the architecture, and the design of the product, besides the traditional decoration.

The interior design is a creative practice that analyzes the programmatic information, establishes a conceptual direction, refine the direction of the design, and elaborates graphical documents of communication and of construction.

Interior design it is not only to decorate a space of a house, hotel or restaurant, it is to create a space to feel something, this space have to have an objective, maybe to make the customers feel relaxed, or to make them feel in a warm and calm space, to people want to do a romantic dinner, or like in fast food this space are created to the customer eats fast and goes out quickly.

An interior designer have to think in everything, from why there will be used this color, of which side will be the chair, how it can be the most comfortable the space, how it is possible to take advantage better of the product, and obviously that everything look very aesthetic, to the final delivery of the whole project.

Design a space is a great job because you work to make easier, comfortable and beautiful the life and activities of the people.

So now I will enlistsay us tricks of famous interior designers to make a functional, ergonomic, aesthetic space room:

Curves are communal
Curves lines open a space in a way that straight edges can’t. This can make an environment with cozier vibe that can do the space more conducive to conversation. An example can be a bonfire, this is curve and it’s so natural to come together around them. Furniture with curves extend subtle communal invitations. — L.A.-based furniture designer Michael Amini

Keep it low to fake height.
If you can give the illusion of having higher ceiling and larger room, use furnitures that are lowers to the ground. Most of the couches or sofas are 18–19 inches from the floor, but exist couches that are lowers as 14–15 inches. -Brian Pickler, President of Nadeau — Furniture with a Soul.
Do the math pre-lighting.

Before you select a chandelier, measure the width of the room. Once you have this number, multiply it by two and convert it to inches to get the minimum diameter your chandelier should be. In addition, sconces should be hung at approximately 66 inches from the floor. You want them high, but if they are any higher they will look like ghoulish. — NYC-based designer Alexa Hampton

Pick your paint last.
As tempting as it to pick the paint color first, it should be one of the last elements of the design process. The color on the walls is what ties all the other elements together making a cohesive statement. If your favorite color is purple or something bold, try to use this color through the furniture or accessories. Using a neutral color on walls can give you more future flexibility in your design. — Karen Gray-Plaisted of Design Solutions KGP

Another recommendation to choose the color that you will paint your wall, it is paint a couple of larger swatches on the wall in differents places and leave there for 24 hours to see how the natural and artificial lights affect the color, and you can decide if you like how there look.

These are some tips that you can use to improve your space and to do, what for you, would look amazing, but in the end the finality is that you feel good in that space and you like how it looks.