I discovered John Green through vlogbrothers (I think that one time that Youtube helped out with Project 4 Awesome charity one year and they were constantly on a 24 hour livestream?) and I think I've read all his books since then? I can't think of any I haven't read, at least. The best one is probably TFIOS, especially since it's accessible to more than just YA imo. My personal favourite is An Abundance of Katherines because I'm a nerd who likes math references. u_u;
I don't have cancer, but I do deal with a few chronic health conditions and even though I was well beyond my teen years when TFIOS came out, it still became a book I really appreciated. The whole time I read it, of course I was sitting there thinking "thank goooood i don't have cancer" but just the way the day to day BS that comes from having to be careful with your health and how the characters handled it like it was so routine? I dunno, seeing that represented in such a normal way really resonated for me. I saw a lot of discussions about the book after its release where neurotypical, able people were talking about how the book kind of reminded them that sick people are people too, with lives and dreams and daily issues, to put it simply. That people are more than just their diseases or sicknesses or health problems. And for me, with my relatively minor stuff, that's not quite such a big deal. I get by just fine whether people recognize this or not... but the idea that people much younger than me still coming to grips with chronic illness might find comfort in a book like this? That's so valuable to me. A book is about much more than just its character or plot. If the themes and ideas really resonate with people to the point that they take something positive away from it, that's important, and I think TFIOS especially is a book that really encourages that.
I've seen a lot of criticism for John Green's writing but I'm not sure how much of it I can get behind. I see a lot of complaints that his characters are completely unbelievable and while I'm not really a fan of the manic pixie dream girl type that some of his books tend to favour, for the most part I always found his characters to be written fairly realistically? They are pretentious teenagers and I was a pretentious teenager once. I used to see people say the characters used too many big words or thought they were too smart but all I can think when I see that is "lmao have you seen a teenager's blog??" The internal monologuing in those books are no different from reading my friends' 3am Livejournal posts back in the day, lmao. :P It didn't seem off to me at all, but then, I probably had the same fairly typical middle-class white person upbringing that John Green did, so! Maybe it's a product of non-widened horizons, I dunno.
Anyway, I think John Green is a cool guy. The educational work he does on Youtube is phenomenal and I have to admit I've always found his half of the vlogbrothers videos to be my favourites. I'm probably gonna go see the Paper Towns movie because he's been so enthusiastic about its production all year, even though PT was probably my least favourite of his books. TFIOS was a great adaptation so maybe they'll do wonders for this one too.