‎"‎For the first time‎,‎ Hildegard‎'‎s Lingua ignota is put in a strictly historical context‎,‎ which runs up to the present time‎.‎ The content of the 1012 words of the Lingua ignota is based on the ‎'‎Summarium Heinrici‎'‎‎,‎ a medieval encyclopedia‎,‎ which stands in the tradition of the Etymologies of Isidor of Sevilla‎.‎ In this work‎,‎ all the visible and non‎-visible reality is described and brought into a hierarchical order‎.‎ The tendency is ‎'‎reification‎'‎‎,‎ describing realities‎,‎ not transcendence‎,‎ mythical speech or quietness‎.‎ With great accuracy and theoretical positioning‎,‎ Higley‎'‎s book makes a strong contribution to the study of Hildegaard and language creation‎.‎‎"‎ ‎- Michael Embach‎,‎ Professor at the University of Trier and Director of the City Library of Trier‎;‎ Author of Die Schriften Hildegards von Bingen ‎(‎2003‎)‎ ‎"‎Hildegard s Unknown Language of more than one thousand invented words has both intrigued and puzzled modern scholars since the mid‎-nineteenth century‎.‎ Higley s book provides by far the best edition of this language along‎.‎‎.‎‎.‎