Publisher Dorling Kindersley claims to have printed the most environmentally conscious series of books in the world.
It has done so, it declares, by using vegetable inks, 100% recycled card and "environmentally friendly" glues.
Chief executive Gary June said its Made with Care series represented "a best practice example of how green and clean books can be produced in the future".
The first four titles include a guide to organic gardening and a children's encyclopaedia on the environment.
The company, a division of Penguin Books, has called their launch "a global publishing first".
'Fantastic'
By removing the book's jackets and an energy efficient binding process, the company said it had saved both paper and energy.
It has also printed the books on paper certified by the Forest Stewardship Council (FSC), ensuring a tree is planted for each one used.
Travel has been minimised by printing the titles locally in Europe, using a German firm with a strong track record of environmental work.
Julia Young, manager of the WWF-UK Forest and Trade network, called the Made with Care series "a fantastic initiative".
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