Hi @Mark C
Thats pretty open ended, so here are some guides for you, and I assume you mean a business page.
Ranking factors of a business page ( helps you understand the basics )
Local SEO and visibility ( website and business page working together )
And I just created a Christmas SEO Checklist which again combines website and business page tips for Xmas.
Tim Capper, Google My Business Top Contributor
Was my response helpful? If yes, please mark it as the ‘Best Answer.’ Learn how here.
Find me on: Google+ | Twitter | Facebook | Linkedin
Tim operates a bespoke Local SEO Consultancy in the UK, Online Ownership