from A to Z
(idiomatic) Covering a complete range; comprehensively; from beginning to end.
They covered the whole field from A to Z in eight classes.
However, Warburton writes in 'Thinking from A to Z,' "Circular arguments are not invalid; in other words, from a logical point of view there is nothing intrinsically wrong with them. Source: Internet
Memory from A to Z: Keywords, concepts, and beyond. Source: Internet