Takada Akinori assumes a person who can read a 300-page novel book in about 2 hours, and suggests the following time allocation.

3 hours for preliminary survey and choose a book

4 hours to read through

10 hours to read again in detail

He also says you should prepare to spend 40 hours for the first time. It is because you need time to learn the methodology.

The reading is quite costly, so you need to spend much time on a preliminary survey to choose the book to read. You need to find a book worth to read in detail. Find books to be chewed.