“You can say that ‘form follows function’ has been abused as an excuse for shitty design and absolutely boring, inhuman architecture.” So says frogdesign founder Hartmut Esslinger, a man who clearly does not mince words. Esslinger’s Design Forward: Creative Strategies for Sustainable Change book was finally released over the weekend, and there’s an attendant teaser video where Esslinger shares five lessons learned on the job: