The Brooke and The Bookish.
I'm not going to include rereads on this list, because in most cases I reread because I loved it the first time around, and they're in no real order, at least I don't think (maybe a little).
The Way of Kings (The Stormlight Archives #1) by Brandon Sanderson (5/5)
So have you all heard enough about how amazing Sanderson's worlds are? Have you at least bought one of his books? Decided to give him a go? You should. I was sold on Sanderson because I started this book, but - this has been my favorite of his so far. Also my favorite of the year, and will probably stay that through to the end. This book is incredible and I wanted to reread it as soon as I finished it - which is impressive considering how long it is (though, I did read it in two part).
The main line - this book is so good I don't have a review up of it, I can't form any kind of coherent words, it would just be keysmashing with some of the characters name.
This Start Won't Go Out by Esther Earl (and others) (5/5)
This - book was hard to read. If you don't know what it's about then you might not fully understand why. Esther Earl was a nerdfighter, who died a few years ago, very young - and this is full of her own writings - and others, an introduction from John Green, writings from her friends (Catitude), and others who met her. It's painful to read, but it's also completely incredible. I have a full review up of it.
The Search for WondLa (WondLa#1) by Tony DiTerlizzi (5/5)
This book was a surprise - it was one of those Kindle deals and I opened it randomly on my kindle, knowing nothing about it. At first, I was confused as hell, but then I just started really enjoying myself. I've got a full review up of this, as well, basically: middle-grade adventure with twists and fantastic illustrations.
Leviathan Wakes (The Expanse #1) by James S.A. Corey (5/5)
Have I talked about this series, and this book, enough yet? Are you all sick of hearing about it? I'm sorry - I'll keep this short, but epic, SciFi, space opera goodness. Full review here.
Redshirts by John Scalzi (5/5)
This book was also a surprise. I think I had it because they read it for Sword and Laser one month that I didn't get to it, same goes for Leviathan Wakes by the way, and I randomly picked it up when I was searching for SciFi. And I had an idea about what it'd be, the name gives it away, but it was hilarious and so, so much better then I expected since I thought I might not enjoy it as much, not being a Star Trek fan. But - perfection. Full review here.
The Martian by Andy Weir (5/5)
This book came out this year, very recently, and was just getting so many good reviews and with that SciFi binge I went on - it was also really funny. Full review here.
Maus Volumes I and II by Art Spiegelman (5/5)
These have been critically acclaimed and have won awards - and they're incredible. I also don't have a review up of these, because I'm not really sure what to say about them. So just - read them.
Frankenstein by Mary Shelley (5/5)
I know a lot of people don't like this - and I could see why people might not - but for some reason I really enjoyed it, loved it. I couldn't put my finger on why, I just did. I'd never read the full story of Frankenstein's monster, or seen a movie, and I really enjoyed this piece of horror.
Paradox: The Nine Greatest Enigmas in Physics by Jim Al-Khalili (5/5)
I'm not going to go into detail here - this is non fiction, it's about physics.
The Immortal Empire series by Kate Locke
Alright the first book was a reread - but I didn't actually remember any of it. These books are a ton of fun - seriously, a ton of fun. And I have reviews up for all three of them: God Save the Queen, The Queen is Dead, Long Live the Queen
I've read a lot of good books this early, especially if you count the rereads (I reread the whole Harry Potter series and the whole Fruits Basket series, Fruits Basket was just this month). What are the best books you've read so far this year? Or if you do TTT, link it in the comments!