Is the book "Al-Ilm" (Knowledge) by Sheikh Ibn Uthaymeen authored by him or compiled from his lectures and lessons, and was it published with his permission or after his death, and is its attribution to him correct?

The book "Al-Ilm" (Knowledge) by Sheikh Ibn Uthaymeen has multiple editions and was printed during his lifetime. However, he did not write it himself in this specific order. Rather, it is a compilation of his lectures, meetings, sermons, and fatwas. The attribution of the book to him is correct, as it is one of the publications of the Sheikh's institution. Many of his works were authored in the same manner, where they were lessons he delivered, which were then compiled and printed.