Data Dictionary:

Variable Name	Variable Description	Variable Type
artist_name	The name of each artist.	String
edition_number	The edition number of the textbook from either Janson's History or Art or Gardner's Art Through the Ages.	Categorical
year	The year of publication for a given edition of Janson or Gardner.	Date
artist_nationality	The nationality of a given artist.	Categorical
artist_nationality_other	The nationality of the artist. Of the total count of artists through all editions of Janson's History of Art and Gardner's Art Through the Ages, 77.32% account for French, Spanish, British, American and German. Therefore, the categorical strings of this variable are French, Spanish, British, American, German and Other	Categorical
artist_gender	The gender of the artist.	Categorical
artist_race	The race of the artist	Categorical
artist_race_nwi	The non-white indicator for artist race, meaning if an artist's race is denoted as either white or non-white.	Indicator
artist_ethnicity	The ethnicity of the artist.	Categorical
book	Which book, either Janson or Gardner the particular artist at that particular time was included.	Categorical
space_ratio_per_page_total	The area in centimeters squared of both the text and the figure of a particular artist in a given edition of Janson's History of Art divided by the area in centimeters squared of a single page of the respective edition. This variable is continuous.	Numerical
artist_unique_id	The unique identifying number assigned to artists across books is denoted in alphabetical order. This variable is discrete.	Numerical String
moma_count_to_year	The total count of exhibitions ever held by the Museum of Modern Art (MoMA) of a particular artist at a given year of publication. This variable is discrete.	Numerical
whitney_count_to_year	The count of exhibitions held by The Whitney of a particular artist at a particular moment of time, as highlighted by year. This variable in discrete.	Numerical