Change the Name of the Days is an artist’s book designed by the American artist David Horvitz. Thirty-two lessons and short teaching units were developed by David Horvitz, artist and father, with the help of his 5 year old daughter. In the tradition of conceptual action books, David Horvitz has created a long poem inviting us to delve in the depths of the imagination. To play and learn with the notion of «guide someone through the sounds of the world around you» and discover the immateriality of the elements that constitute the world. From «welcome the night into your house» to «exchange breaths with a plant», this publication by JBE Books, in association with Yvon Lambert, is also an opportunity to develop a performative action for each lesson and to constitute your own personal collection of poetic instruments. The book is enriched with a text by Natilee Harren, researcher and Fluxus specialist.