Today, indoor positioning, along with indoor navigation, is currently no longer impossible. Nevertheless, it is still an interesting and growing research area. I particularly am interested to explore various techniques that enable unsupervised approach to learn and build patterns, commonly known as fingerprints, that may lead to usable, or better still precise indoor positioning. Once we can successfully position a person in an indoor environment, more advanced services can be realised. One of them will be indoor navigation. Again, there are various techniques to enable navigation for indoor purposes too.