I needed this. I don't really like the patronizing from the beginning but it does good in showing the flaws one makes often and more importantly guide us in the way to correct them. Observe and practice. Nsio explains: Foreshortening by Nsio
The Adelaide Zoo Entrance Precinct. Australia’s first purpose-designed ‘green roof’ to support wildlife shelter and extensive ‘living walls’ of native plants, making it a significant horticultural park and research centre as well as a world class zoo.