Wood types, technical data and general uses
How many wood types are there? 279 as per “Useful Woods of the World” by James H. Flynn? I am too young to even try to answer this question, I just enjoy every new type I work with! If you make it from wood, how long can it last? The people are gone but the wood remembers their hands!
The oldest intact bows ever found come from Denmark and are around 8,000 years old. They are named for the area in which they were dug up—Holmegaard—and are longbows made of elm. They measure around 170 centimeters (67 in). Since the bows were found in such good condition, it’s been possible to recreate them—and people have. As an interesting side note, the earliest surviving arrows are actually from around 3,000 years earlier, and were found not too far from the Holmegaard bows. Unfortunately, the bows created with these arrows were made from pine and were less suited to surviving the intervening centuries.
Interesting 8000 years , they did not even know what we know about feeding, sealing and protecting wood! We must not forget our Wikipedia definition for wood:
It has been used for thousands of years for both fuel and as a construction material. It is an organic material, a natural composite of cellulose fibers (which are strong in tension) embedded in a matrix oflignin which resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or wood chips or fiber.
The Earth contains about one trillion tonnes of wood, which grows at a rate of 10 billion tonnes per year. As an abundant, carbon-neutral renewable resource, woody materials have been of intense interest as a source of renewable energy. In 1991, approximately 3.5 cubic kilometers of wood were harvested. Dominant uses were for furniture and building construction. 
Wow, that is a mouthful! Wood is natural, looks great when it’s alive and looks fantastic when its worked. Yes, with a bit of care and effort you can make that special wooden project. We now produce reliefs and patterns from 7 wood types. This list will grow as we test new wood types on the CNC router. We believe it is critical to test each new wood type and see how it performs under different carving, sanding and polishing techniques. A lot has been written about this subject and we will not reinvent the wheel, we created a summary with some useful link on each of the wood types that we use
Please note that this is general discussion on wood types, and every tree is like a finger print, not exactly the same and thus each piece of wood it unique!