Ideally, lawns shouldn't be laid directly up to walls or fences since this can make mowing difficult, and you may find you need to use a string trimmer to fix the edges. To avoid this, lay a line of bricks alongside the lawn.
half moon cutter or spade
spade or turfing iron
trowel or brush
garden hose (optional, for curved lawns)
Use a brick to establish the width of the mowing strip required, and then mark it off using string and pegs. Use a half moon cutter or a spade to cut down along the line to the depth of the brick.
Use a spade or turfing iron and keep the tool as level as possible. The turf can either be re-laid in the garden or stacked upside down and left to decompose into compost.
Use three parts sand to one part cement, and place a thin layer of it in the bottom of the trench. Lay the bricks on top, and use a rubber mallet to tap them down, ensuring that they are level.
Using the same ratio of sand to cement, brush it between the gaps in the bricks with a trowel or brush. Wet the mortar by sprinkling water over the bricks using a watering can.
Rounded lawn spaces will require a slightly different process. Mark off the mowing strip using a garden hose or a line of sand. Place the bricks along the inner curve; the space between the bricks will be wider at the mowing strip's outer edge.