From what I've read on other threads on here regarding job-hopping / short-term employments, it seems that you should never state your reasons for leaving a job on your CV.
I believe I have legitimate reasons for me switching jobs more than once in a short space of time, reasons that I'm sure a future employer would understand... provided I actually get the chance to explain it to them.
These are basically along the lines of me wanting a role that is more challenging and one that will progress my career in the right direction. I think this will be too long winded to properly explain in a cover letter however.
My concern is that they might not want to offer me an interview should I apply for a job, because they'll see on my CV that I've changed jobs a couple times within the space of 12–18 months already.
As a designer, I think it is my portfolio that is my main tool in order to get an interview (rather than what is down on paper). Might it be an idea for me to simply apply for jobs without a CV? and maybe hand them one at an interview?
That way I can explain my career history properly to them in person.