Job Riddles: Who am I?

I work in a place where you can read and borrow books. Who am I?

I keep the city safe by making people follow the rules. I go solve problems when accidents occur. Who am I?

I take interviews. I write articles and news. What am I?

I plan buildings, roads, bridges and airports. I work with architects. I wear a helmet at the project sites. Who am I?

I use computers. I design applications and programmes. Who am I?

I bake bread, cookies and sometimes pastries. Who am I?

I provide people with new looks by cutting, styling, and sometimes coloring their hair. Who am I?

I visit many countries and take many flights. Who am I?

I grow crops or animals to produce items to sell. Who am I?