To find a reputable contemporary interior decorator, visit HGTV.com as they have a lot of decorators. One of the best is the canadian Sarah Richardson decorator that works for HGTV.
www.cajacobdesign.com also check your local Craigslist.com for listings of people offering their services, ask for a sample of their work and you will probably get a interior decorator for a budget.
Here is a twelve week online course to become an interior decorator: http://www.interiordecoratingschool.com/ And here is a list of certified schools that offer interior design courses: https://www.cidinternational.org/schoolstraining.php
A certified interior decorator is not necessary if you plan to do the work yourself. There can be advisement fees if you hire a certified interior decorator.
There are many colleges and universities with majors and minors in interior decorating such as The Art Institutes. However, training is not required to be an interior decorator.
A good resource for certified interior decorators is the American Society of Interior Designers. Asid.org has search features to help you find exactly the right designer for your needs, in your area. As for cost, that will depend on several factors, such as location, difficulty of the project, and experience of the decorator.
Decorator
It can be a great idea to hire an interior decorator depending on the scope and budget for your project. If you are planning a major renovation or have a large budget, hiring an interior decorator can save time and money.
Interior decorater magasin d 'ameublement
Interior Designer.
It really depends on what you do.
Interior decorator
There is no mandatory education for a person to become an interior decorator, however a bachelors degree in interior decorating is generally recommended, followed by an apprenticeship.