ackland art museum Ideally suited for a wide range of applications, the PURe® aluminium windows are available as tilt and turn or casement windows. Senior’s innovative door range also features a choice of the PURe® FOLD and PURe® SLIDE options. So what is the importance of having the industry's history? Why do you have to study the events that happened before? It's simple'to appreciate the craft many explain better the way progressed through the years. By knowing its history, you will understand what sort of industry grows and the way you can turn into a more competent animator.