Oops, typo:

On 25 November 2014 at 19:54, Dominik Wujastyk <wujastyk@gmail.com> wrote:

Dear colleagues,
...
Penguin Books India (as it was then) also published a book of mine, The Roots of India, in their Penguin Classics series.
...

That should be "Roots of Ayurveda."