Cultural studies definition by scholars

What is cultural studies according to Richard Johnson?
From this point of view cultural studies is a process, a kind of alchemy for. producing useful knowledge; codify it and you might halt its reactions.
In the history of cultural studies, the earliest encounters were with literary. criticism..
Cultural studies is a relatively new interdisciplinary field of study, which came into being in the UK in the post-war years.
It emerged out of a perceived necessity on the part of two of its founding figures, Raymond Williams and Richard Hoggart._{Aug 18, 2020}
His writings on politics, culture, the media and literature contributed to the Marxist critique of culture and the arts.
Some 750,000 copies of his books were sold in UK editions alone, and there are many translations available.
His work laid foundations for the field of cultural studies and cultural materialism.

What is cultural studies according to Richard Johnson?