Life-changer. I read the book based on this series [1] when I was progressing from doodling / being mostly unaware of visual art to being interested in (seeing and making) visual art. I've never looked back.
In the book, the image quality in it is low so I recommend watching the TV series as linked
[1] https://www.amazon.co.uk/dp/014103579X/ref=asc_df_014103579X...