This book is a following from Freart book of 1716, which shows the changes that was made from the time and hands of many different authors that gave life to the noble works of Leonard notes of the paint, it was original written in French in 1820 which show from the time after Freart work to the Italian whom did it, and added in to say of it, which the prior-author had manly used the French version of it and gave it more information of the passage of Leonard works for a history of changes that will lead up to the 1920 French version of it works.