Considering the enormous amount involved in following the ISO27001 standard, especially if you go all the way to certification, I would tend to recommend following some form of training.
Some of the offered training (but not all) will provide you your own copy of the standards as part of the training fee (that is, you pay for it too, but you don't need to contact your local standards authority yourself).
Of course, this will be more expensive than just buying the standard, and maybe you'll prefer to at least read it by yourself before deciding if you really want to implement it, but I truly believe that if you do want to implement it, you'll need help to do so.
That said, it mostly depends on your company's goal - if you're going for full certification, have the company send you to an ISO27001 lead implementer training right away (by the way, one of the clauses of the standard mandates that your management should commit resources to the implementation and maintenance of your ISMS - that means investing in you), it will be worth it.
If you're just considering to implement the standard as a tool to improve your security, or merely curious about it, then yes, maybe just reading it will be a sufficient good start.
Localized-in-time part of the answer:
Of course, considering when you asked, it's likely you followed Rory's answer and bought it already - if so, I'm curious as to what your next steps have been. In particular, your own experience as starting with ISO27001 might prove invaluable to others stumbling on this question; what did you do to start, what would you recommend, and what not? Remember, it's ok to answer your own question.