You can see from the graphic above about the history or evolution of chairs from long time ago up to our present times now. Back in the day, chairs were on a steady place and only has the plain and simple design for its basic purpose, which is of sitting.
With the current innovation and continues growth of modern day technology, we now have different size, shapes and styles of chairs depending upon your taste and preferences. The latest now would be the ergonomic chairs right?! Especially for work/ office use. Comfort and convenienve is the top consideration in buying/ looking for office chairs.