I've been watching leonard susskind's lectures on general relativity on youtube, i'm now at the fifth of them. It is my first exposure to general relativity and so far the lectures are pretty easy to follow. So my question is this, to anyone who has had more exposure to the subject: Do you think the level of the lectures is too low to consider it a good one to learn general relativity from, beyond the very very basics? or would you rather consider it a really basic introduction? I have found it a bit suspicious sometimes that i havent had to struggle a lot to understand everything. I dont have access to advanced general relativity books at my school's library and i dont know any to look up online, so i really cant check by myself, therefore my question. Thanks in advance for reading and replying.