The Khecarīvidyā is a Sanskrit text from about 1400 CE on the haṭhayogic practice of khecarī-mudrā, which I edited and translated as my doctoral thesis at Oxford University under the supervision of Professor Alexis Sanderson. I revised it for publication by Routledge Curzon in 2007. A South Asian edition was published by Indica Books of Varanasi in 2010.
Click here to download a review of the book by Professor Christopher Chapple and here for one by Professor Gerald Larson.
Click here to download the full collation of the witnesses used in the critical edition of the Khecarīvidyā.