Annagramma Hawkin was introduced in A Hat Full of Sky and is a peer of Tiffany Aching, whom she initially disdains. Trained by Letice Earwig, she can be extremely snobbish and has strong opinions about what a witch should or should not be, much like her mentor. On her first meeting with Tiffany Aching, Annagramma told Tiffany that she thought Granny Weatherwax was an 'ignorant old woman' who bullied and tricked people into thinking she was powerful, which, in her opinion, was an outdated form of witchcraft. Influenced by Mrs Earwig, she believed that witches should adopt a more professional form of witchcraft by employing 'higher MagicK' and using such tools as sacred circles, written spells, and 'real wands'.
During the events of Wintersmith, Annagramma is assigned her own cottage, taking over from the late Miss Treason. Initially, she is unprepared for the real demands of being resident witch for a village; after Tiffany rounds up their peers, the other members of their makeshift coven, and they are each able to give Annagramma small crash courses in true witchcraft (medicine, etc.) over the winter.
During this time it is revealed that her arrogance may in part be an overreaction to a deep insecurity about dealing with situations she cannot control. She admits to Tiffany, under pressure, that, unlike what her behavior might let people think, her family is quite poor, even for Lancre standards, not even having their own cottage (living in a rented one), nor do they have their own pig. This gives another reason why having her own cottage is so important to her. She later assists Tiffany by temporarily dispelling the Wintersmith's physical form with a fireball and ordering her broomstick to carry Tiffany away before he could re-form himself.
After Tiffany and others from her peer group assist Annagramma, it turns out that she is good enough at the part of witchcraft that consists of being tall, confident, bossy, and giving people a good show to pick up the rest along the way. Granny Weatherwax had suggested that the cottage be taken over by Tiffany, due to the fact that she was too young and Annagramma would be accepted instead (had Granny suggested any other witch, Annagramma would not have gotten the cottage). She later says, upon learning that Tiffany had been helping Annagramma, that she would have expected nothing less, leading Tiffany to conclude that the whole affair had been a ploy to prove to other witches that Mrs. Earwig's kind of witchcraft didn't work.
She also makes an appearance in The Shepherd's Crown, as when the threat of the elves rises, she is amongst those called upon to fight them off, and is amongst the force to drive the Elf Lords' Lankin's and Peaseblossom's forces away from Lancre.