Love to learn GR but lack or dislike doctoral mathematics. Here is a list of books through which one can catch the essence of the subject and also learn its mathematics without much pain to the eyes- 1. At first, one should DEFINITELY refer to Albert Einstein and His Inflatable Universe (Dead Famous) https://www.amazon.com/Albert-Einstein-Inflatable-Universe-Famous/dp/0439992168 This comic book prepares a floor for your further advancements in the subject. 2. Secondly, one should refer to the following videos to master SR with ease Special Relativity | Lecture 1 3. And at last one can refer to - Gravity: An Introduction to Einstein's General Relativity https://www.amazon.com/Gravity-Introduction-Einsteins-General-Relativity/dp/0805386629 This books physics first approach erects your understanding in GR to its max height. Be careful to study only desired chapter for understanding only. Its a fantastic undergrad book. If you go by the above mentioned sequence of books and video, you can definitely greatly enhance your understanding in this beautiful subject. So go on and enjoy.