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There are two "Spiral of Tranquility" products: the Spiral
of Tranquility and the Pendant
version of the Spiral of Tranquility.
More information about both of these products is included on seperate
pages (on for each product), accessible from the left-hand-side
panel on every page of this website.
These products and the theory and research on which they are based
are also described in a series of three textbooks published over
a period of eight years (1997, 2000, 2004) summarising
studies undertaken over a longer period of time.
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