Reddit reviews Hawkeye, Vol. 1

That’s a really bad example of that series’ artwork and covers

https://www.amazon.com/Hawkeye-Vol-1-Matt-Fraction/dp/0785184872#immersive-view_1563713060819

You already got lots of answers, but here's some links! I'm not sure what country you're in, this is from the Canadian Amazon, so adjust prices accordingly. It'll at least help you find them elsewhere.

The first trade (issues 1-5, plus a bonus Young Avengers): https://www.amazon.ca/Hawkeye-Life-Weapon-Marvel-Now/dp/0785165622/ref=sr_1_2?ie=UTF8&qid=1485030110&sr=8-2&keywords=fraction+hawkeye

Or first hardcover (issues 1-11, plus bonus Young Avengers): https://www.amazon.ca/Hawkeye-Oversized-HC-Marvel-Now/dp/0785184872/ref=pd_cp_14_1?_encoding=UTF8&psc=1&refRID=A1VGWH5QT5JJ86CAEBSQ

Yes, it's going to oversized and hardcover. Out in November: http://www.amazon.com/Hawkeye-Vol-1-Matt-Fraction/dp/0785184872/ref=sr_1_3?ie=UTF8&qid=1377013544&sr=8-3&keywords=hawkeye

I don't worry much about hardcover vs. softcover, but I do keep a few things in mind:

• I like thick collections, preferable with about 10 or more issues. So I'd prefer Hawkeye HC Volume One to My Life as a Weapon and Little Hits. That it's a hardcover is irrelevant, but it's nice and big.
  
  
• DC has a pretty bad track record with hardcovers. They're known for some serious gutter loss and poor binding (the spines are usually glued, rather than sewn and tend to fall apart.) I try to avoid DC hardcovers unless I'm getting them in person and can see first-hand how they are. I understand that DC's getting better, but they're nowhere near Marvel on this yet.
  
  
• Because I'm obsessed with collections, I try to keep an eye on how DC and Marvel keep their stuff in print. DC generally just doesn't. A friend of mine was collecting the recent Swamp Thing hardcovers, but didn't grab them up fast enough and now they're out of print. DC also has a tendency to abandon a collection series if it isn't selling well. Marvel is pretty good about either reprinting old stuff or putting it out in a new format (Essential, Masterworks, Epic, Ultimate / Complete Collections, Visionaries, etc.) They also rocket through a series pretty quickly if it's a catalog title. They put out the Jurgens Thor run in like two years. So, all that in mind, I try to be aware of Do I need to buy this rightnowyesgofast? or can I wait? Stuff like Watchmen will always be in print, but DC put out, what?, one Suicide Squad trade before abandoned the series? Will I ever be able to buy Chuck Dixon's issues of Nightwing or Robin?

This one, this one, this one and this one.
Then use what is left to get as many issues of this as you can.