Brides picture editor Hannah Lamacraft knows how to spot a good wedding photograph - she's looked through thousands, after all!
First and foremost, decide on what style of photography you're looking for. If you love a relaxed reportage style, which is more about capturing the moment than posed pictures, there is no point meeting up with a photographer with a formal style and expecting them to try something different on your wedding day.
Like what you see on a photographer's website? Request that they send you an example of a complete wedding that they shot from start to end. The photographer may be able to shoot a pretty bouquet but can they capture the trickier shots like the first dance or you walking down the aisle?
Are you getting married in mid-summer or having a Christmas wedding? Ask for pictures from this time of year. There is real distinction between photographers who work with natural light for a soft and pretty feel and those who prefer flash for a more dramatic edge. If you're getting married in December, remember the sun isn't going to be shining at 5pm so ensure you like their 'after dark' shots as much as their blue sky ones.
Lenses and tripods aside, ensure you like and can communicate with your photographer well and feel totally at ease in their presence. This is especially important for the 'getting ready shots', which will probably be your first (and only?!) experience of having a professional photographer in the same room as you.