Talks and presentations were an important part of Gurdjieff's early activities.  This is the first release of Gurdjieff's talks that were selected by Jeanne de Salzmann and Olga de Hartmann.  It was originally published in 1975, with an introduction by Madame de Salzmann.The treasures selected here were given from 1918 to 1933 in Russia, France, and the US.  The first chapter is "Glimpses of Truth," referred to by Ouspensky in In Search of the Miraculous. 
 
This book is now out of print. Hopefully it will be deemed necessary to republish.