We are taking the liberty of giving you a small guide to reading our virtual book.
If the mouse cursor should change form when it moves around on the screen, by becoming a closed fist with the index finger raised, this means that by clicking on the object indicated an action follows.

• If the object is the heading of an index, by clicking on it you
  move on to the next chapter.

• If the object is a photo or a drawing, by pressing the mouse
   key you get a full-screen view of the image.

• The two Formula Ones on the left hand front page, in green
   and red, allow you to choose Italian or English respectively.

Happy Reading!!!