All, Every and Each, when applied to the individuals of a group, imply inclusion of the entire membership with no exceptions.
All is applied to the aggregate of individuals and implies consideration of it as a unit without regard to the individuals as distinct persons or things.
- all men are mortal
- all books are written to be read
Every is applied to any of the individuals comprising the group, regarded not as a concrete person or thing but as the type or representative of the entire membership.
- every man is mortal
- every book published should be worth reading
Each is applied to any or every individual of the group, but unlike every it implies reference to him or to it as a distinct, recognizable, and therefore concrete person or thing.
- he knows the weaknesses of each batter on the team
- each book on this shelf is worth reading
- each person in this club must pay his share of the expense