Comic Trivia #8
Added 2019-11-17 08:57:09 +0000 UTCThose lines are known as action lines, speed lines, movement lines, zip ribbons or motion lines and obviously indicate direction and speed. They are very common in manga.
Second type of speed lines are called radial speed lines:
Digital software such as Clip Studio Paint makes it easy to create all types of motion lines, but before digital, drawing them required some inking hacks:
(From "How to Draw Manga Pen & Tone Techniques" )
