The first part of Kenya Hara’s Designing Design devotes to redesign projects of daily products. For example, Shigeru Ban turned a round roll of toilet paper into a square roll. In term of functionality, a square roll creates more resistance than a round roll; therefore, it reduces usage. In addition, square rolls are easier to stack and fit easier than round rolls. The book features dozens of case studies that focuses on design thinking with fascinating visual examples. An eye-opening and beautiful read.