The phrase "mastering of" is correct and usable in written English.
It is often used to describe the process of becoming proficient or skilled in something. Example: "The mastering of a new language requires dedication and practice."
No one could confuse the tenant farmers' days with a complete mastering of life.
Early results are promising, and could make the mastering of algebra almost invigorating.
The mastering of agriculture led to a sense of territory that led to wars.
The rest is history and the mastering of the football science known as capology.
The breeding, care, and maintenance of medieval war-horses, and the mastering of the skills of mounted combat, required immense amounts of time, skill, and resources.
"It's a place of human greatness, suffering and endurance – and an almost incomprehensible mastering of a situation that seems overwhelming, impossible to deal with.
He brings order to a floundering franchise, emphasizing the mastering of the basics, and he provides something the Redskins need, which is fire.
The church ordered that Mr. Burdick not be permitted to take part in the editing, overdubbing or mastering of the recordings, he and the producer, Bettina Covo, said.
But it is of course the vast five-volume metaphysical space opera known as Canopus that marked her full mastering of SF.
His mastering of that skill is then dramatised, all knitted brows and euphoric music, as the cathartic finale to the cheesiest Hollywood sports movie.
Along with this scientific mastering of the information comes something like a wariness of narrative naïveté: such writers frequently move back and forth in time, plucking and massing details thematically, from different periods in and outside the camps.
