Three unfortunately not great picture-quality but information-packed UK ‘mini-documentaries’ by Iota. First, an introduction to temperate permaculture pioneer Robert Hart (1913 – 2000), one of whose “guiding principles” is given as Mahatma Gandhi’s vision of “democratically organised, self-sustaining communities”. Next, a visit to The Field in Cornwall, where plant database Plants for a Future founder Ken Fern introduces his work. Finally, an interview with Mike and Julia Guerra, who grow almost a fifth of their food in their city back garden. “Nature is the biggest teacher”, says Mike.