Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
I found out about Richard Louv's work via my daughter, who was referencing his previous book, "Last Child in the Woods" as part of a university outdoor education assignment. I found that book fascinating and went looking for it, only to find this new book, "The Nature Principle". I'm almost finished reading it. It is a very comprehensive investigation into the the natural world, it's benefits to mankind (mostly), what we can do to derive those benefits and exemplar examples of individuals, groups and nations that are trying to bring nature into the centre of their lives.
This book was full of practical ideas both at the individual and community/systemic level to increase our connection with nature. I found it a really enjoyable and inspiring read, first for ages that puts hope and optimism in the driver's seat.