Does he have any beginner friendly books on math I saw some clips of his masterclass but I am skeptical of masterclass in general so I am not sure about that
His masterclass is substantially better than the average masterclass, particularly for somebody who isn't already an amateur or better mathematician.
He has a blog which has some more elementary posts and some less. But I’m not sure if that would be sufficiently ‘beginner friendly’ for your needs. https://terrytao.wordpress.com/
His book Analysis I, and potentially also his linear algebra lecture come to mind.