It is usual for the bride and groom to sit at a top table joined by their parents, the best man and chief bridesmaid.
However, this is not always practical, and often the bride and groom host one table while parents, either individually or as a couple, host their own.
Remember to take into account access for those guests with small children or elderly invitees, who you may equally want to place near the front so they can hear the speeches.
Don't be afraid to mix up generations and both families on the tables, which should ideally have between eight and ten guests, and make an effort to position speech makers so they are not sat with their backs to the room.
Traditionally couples are seated at the same tables although not next to one another, and you should try to ensure each guest knows at least one person on their table, as well as one stranger they will get on well with.