Wearable haptics is an emerging research trend that will enable novel forms of communication and cooperation between humans and robots. The literature on wearable haptics has been mainly focused on vibrotactile stimulation and only recently wearable devices conveying richer stimuli, like forces, have been proposed. In this talk, I will introduce design guidelines for wearable haptics and will review the research in this field and I will show how extraordinary is the paradigm shift in both human-human and human-robot cooperation.