Flower arrangement is an art and like any form of art, its beauty lies in creativity. Flower arrangement is formally known as floristry, it can extend beyond mere flower arrangement to encompass the cultivation and trade of flowers.
The florist must have great coordination, a sharp eye for design and a good working knowledge of plants that they use. You can get to know more about floristry, via https://floristry.com.au/floristry-sundries-tool-kit/.
However, for the sake of being comprehensive, here are few methods of flower arrangements attained by using a basic floristry tool kit.
The fan shape arrangement sees flowers and leaves spread out to form an arc or a fan type shape. The components are arranged low and don't interfere with other decor. A single or a couple of large flowers are usually the centerpiece, fanned on the sides by smaller flowers and leaves.
Circular or round shape flower arrangement is the most common and also the easiest to pull off. It has a neat look and is ideal for placement on small tables and mantles. Boardroom meetings and buffet tables regularly have them as the centerpiece.
Oval arrangements are similar to circular shapes but have more height. A dense cluster is required so small flowers and ferns are interspersed with large blossoms.
There are many flower arrangement courses where you can learn how to build flower arrangements for all types of events.