You are working with a dataset and want to change the names of categories that you used for different types of books. What term best describes this action?

Recording, often referred to as 'recoding,' involves transforming existing categorical or numerical data into new categories or values, which directly applies to changing category names. This process allows for re-labeling or re-assigning values within a variable based on specific criteria or a new classification scheme.

Summarizing involves reducing a large dataset to a more manageable and meaningful form, typically through descriptive statistics.

Aggregating involves combining data from multiple rows into a single summary row, usually using functions like SUM, AVG, or COUNT.

Filtering involves selecting a subset of data based on specific criteria, without altering the existing values.