"Designing for Behavior Change: Applying Psychology and Behavioral Economics to Product Design" by Stephen Wendel / Masanao Takeyama / Masaki Aishima Price: ¥3400 #StephenWendel #Stephen_Wendel #MasanaoTakeyama #Masanao_Takeyama #MasakiAishima #Masaki_Aishima #Book #Electrical/Mechanical/ElectronicCommunication I bought this used and read it once, and there were no particular issues. However, please refrain from purchasing if you are concerned about minor details. I will offer a small discount if you purchase multiple items together. I hope you will consider it.