Introduction to Web theory

1)  Local study of 3-webs on surfaces ; Blaschke curvature ; local Chern connection.

2) Global structure of webs on surfaces ; dicritality.

3) Rank of webs on surfaces ; Henaut connection.

4) Stucture of webs in codimension one.

5) Rank of webs in codimension one. Ordinary webs.

6) Higher codimension.