It's a video course about Linux heap exploitation (obviously):

https://www.udemy.com/course/linux-heap-exploitation-part-1/
https://www.udemy.com/course/linux-heap-exploitation-part-2/
https://www.udemy.com/course/linux-heap-exploitation-part-3/

Found a free download here:

https://freeeducationweb.com/linux-heap-exploitation-part-1/
https://freeeducationweb.com/linux-heap-exploitation-part-2/
https://freeeducationweb.com/linux-heap-exploitation-part-3/

Great! Thank you

Nice Bro  😉