Why does postgreSQL detect this line as a column name?

Question

I'm doing this (Postgre)SQL excercize for a course i'm following; the objective is fairly simple i suppose:

Insert data into courses using the data provided. Make sure id is system generated.

for reference, this is the query to create said table

%%sql
CREATE TABLE courses (
course_id SERIAL PRIMARY KEY,
course_name VARCHAR(60) NOT NULL,
course_author VARCHAR(40) NOT NULL,
course_status course_status,
course_published_dt TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

and this is the query that i'm trying to run

%%sql
INSERT INTO courses (course_id, course_name, course_author, course_status, 
course_published_dt)
VALUES 
("Programming using Python", "Bob Dillon", "published", "2020-09-30"),
("Data Engineering using Python", "Bob Dillon", "published", "2020-07-15"),
("Data Engineering using Scala", "Elvis Presley", "draft"),
("Programming using Scala", "Elvis Presley", "published", "2020-05-12"),
("Programming using Java", "Mike Jack", "inactive", "2020-08-10"),
("Web Applications - Python Flas", "Bob Dillon", "inactive", "2020-07-20"),
("Web Applications - Java Spring", "Mike Jack", "draft"),
("Pipeline Orchestration - Python", "Bob Dillon", "draft"),
("Streaming Pipelines - Python", "Bob Dillon", "published", "2020-10-05"),
("Web Applications - Scala Play", "Elvis Presley", "inactive", "2020-09-30"),
("Web Applications - Python Django", "Bob Dillon", "published", "2020-06-23"),
("Server Automation - Ansible", "Uncle Sam", "published", "2020-07-05");

when i run it, the message below appears:

(psycopg2.errors.UndefinedColumn) column "Programming using Python" does not exist LINE 3: ("Programming using Python", "Bob Dillon", "published", ...

i really don't get why it takes the first value of that row as the column name... what am i doing wrong? The very same slides i'm following picture queries done the same way!