How exactly did Leonardo Da Vinci influence art in general?

I have a paper due in Modern Art class where I have to write Leonardo da Vinci a letter to make him want to visit a surrealist and abstract art exhibit. However, I can't come up with ideas of why he would be interested in abstract art when he was clearly...

craft (how well an artwork was made) and communication (the uniqueness of the artist's vision and its message or meaning). Michelangelo Buonarroti and Leonardo da Vinci were considered masters of these two qualities. Compare a work of art from each artist...

Do you think Leonardo Da Vinci could make it as an aspiring artist in this day and age?Do you think he'd become famous or set himself apart from the crowd?

Can someone please give me a detailed answer on LLeonardo Da Vinci’s art style. How he was a realism artist and about his self portrait thank you

I am in the printing business but it is just now that I am learning my rights or non-rights as far as printing artworks of Da Vinci, Rafael, Botticeli, etc. If anyone knows, please enlighten me. Thanks

i just want some sites to know more about the painting. and i will not use wikipedia at all! that site is like 50% true or falsce since people can edit on it. and just by leonard da vinci no one else. know any sites?

How did he study art and some examples, por favor Also, if you feel like being awesome: How did he study science? Did he have any theories? If so, list them pretty please :P Did leonardo study nature (plants, humans, etc.)? If so how? Did he study anything...

AP world project and i have no clue WHERE to start? basically my whole summer is riding on if i get a good grade on this project... so whats a few sources that i can some reliable information on him and his art and how his art effected the renaissance...