what are oppurtunity books and how would my sim find one :S

Is this what you mean? https://answers.yahoo.com/question/index?qid=20110115195326AA0dhle

Oh, yes but i cant really understand what the answer on that page..

do you know what they are used for and how i can get them

it can depend on the opportunity  for example if the sim is in the culinary career the boss may give you an opportunity  learn such and such an recipe then in the sims inventory (the bag/backpack )  click on the inventory click on the book learn the recipe when i played the showtime jobs my sim had an opportunity to read a book i forget the name of it but it was for his acrobats career for that one he had  to go to the bookstore for the criminal career the boss may ask you to read a book again that will be in the inventory most opportunity books are job related

career skills (as above )are related to a career if your sim has one

 there are three different types of opportunities that you can come across career, skill, and special

skill opportunities  say your sim is learning handy skill then he/she may get a phone call from someone in the town that has broken stero you fix it and return it

special opportunity a sim dies you may get a call oh my ghost where you bring the urn in the science lab tries to resurrect the dead sim but returns as a playable ghost