You ran though the chapter called "Transformation" and found many interesting spells, one of them was "Body modification" capable from altering someone's body, to increasing certain attributes such as a females chest area, another one was "species change", capable of turning one from a human, to any other species, whether it be a non-existent beings only from a fiction book, to real life animals such as Demi-humans and Actual animals
Then there's another one called "Absorption" allowing someone to absorb a certain person, either to obtain his or her memories, add certain parts or features to his or her body, or simply to dispose of them quickly
And lastly, Age progression or Regression, being able to alter someone's age, making them younger, or older, or even so far as being unborn or giving someone immortality
There was only you, and the witch inside the store, and these spells are only applicable to animated objects, or living things