QUES: As visualization technology becomes ubiquitous professionals will need to use maps data charts and other graphical elements to illustrate their own value and share ideas

correct the punctuation.

CORRECTED: As visualization technology becomes ubiquitous, professionals will need to use maps, data, charts, and other graphical elements to illustrate their own value and share ideas.

QUES: Xenakis was one of the protagonists in the avant garde of the 20th century as a pioneer within the field of electronic music and because of his use of mathematical systems in music

correct the punctuation.

CORRECTED: Xenakis was one of the protagonists in the avant garde of the 20th century as a pioneer within the field of electronic music and because of his use of mathematical systems in music.

QUES: It is good to have a hobby

correct the punctuation.

CORRECTED:
It is good to have a hobby.