I like the Franco-belgian comic school of the clear line.
There are plenty of folks on Youtube teaching how to make comics but I`m interested in improvimg on clear lines. Do you know any tricks to improve this technique?
One thing that appears obvious is that one has to make the drawings much bigger than they`ll eventually be published, so that any trembling lines won`t be visble in the final product

http://lambiek.net/artists/m/martin_jacq.htm

this site includes all famous comic designers including clear line experts line J. Martin and E. P. Jacobs