Further reading on Leonardo de vinic:

Leonardo Da Vinci, the classic biography from Kenneth Clark
Leonardo on Painting, writings from the master himself
Leonardo on the Human Body, includes some of his best sketches
The Notebooks of Leonardo Da Vinci, with both his text and illustrations
Leonardo: Painter, Inventor, Visionary, Mathematician, Philosopher, Engineer, the title says it all, a great one volume introduction with excellent quality reproductions

                             Leonardo da Vinci images:
  The Adoration of the Magi
  Benois Madonna
  Distance from the Sun to the Earth and the size of the Moon
  Drawing depicting the casting of giant cannon
  Geometric Figure: Duodecendron elevatus vacuus
  Geometric Figure: Tetracendron elevatus vacuus
  Head of a Warrior
  Head of a Woman
  Head of a Woman (with eyes closed)
  Head of a Young Woman
  John the Baptist
  Lady with an Ermine
  The Last Supper
  Madonna Litta
  Mona Lisa
  Muscles of the neck and shoulders
  Portrait of Ginevra Benci
  Portrait of Isabella d'Este
  Portrait of a Lady from the Court of Milan, called La Belle Ferronniere
  Rearing Horse
  Self-Portrait
  Sketches for "The Battle of Anghiari"
  Study for the Composition of the Last Supper
  Study of Cat Movements and Positions
  Study of Grotesque Heads
  Study of proportions (Vitruvius Man)
  The Virgin and Child with Saint Anne
  The Virgin of the Rocks



                                       Click here to more information about Leonardo de vinic