World History B Question and Answer 2nd edition Learn through Era and Flow! World History B Terms Both come with red sheets! *Only the "Learn through Era and Flow" has some marker writing. Instant purchase O.K.! Since it's been stored by an amateur, there are some scratches on the cover. I will only sell to those who understand. Thank you! #WorldHistory #WorldHistoryB #UniversityEntranceExam #WithRedSheet #ReferenceBook