Today, a wide variety of manga technical books are available. And with the spread of the Internet, the information you want is overflowing and easily available.
However, overcoming technical problems does not mean that manga can be drawn. Many people must have experienced getting stuck.
There must have been something like a "wall" that made it impossible to draw even though I wanted to.
Based on his own experiences, a professional manga artist will teach you how to smoothly overcome the "wall of manga" that you face in every situation.