If i wanted to say, i read books in french how would i say that? could i say, je

If i wanted to say, "i read books" in french how would i say that? could i say, "je lis des livres"? élire is conjugated to 'je' and i attached an 's' at the end of 'livre' because 'books' is plural, but i'm a little unsure if i used 'des' correctly. to follow that up i want to say, "i want to be a french teacher." could i say, "je vuex devenir professeur de français"? again conjugation, but a little unsure about 'de' placement. i would appreciate any advice you may have. merci !