They can serve a practical purpose utilising an awkward space such as down the side of a house or provide formal shapes that are edged with plantings and leading to that special feature.
If wanting to construct a pathway there are several factors to consider:
Do the areas to be connected join in a straight line or will a curve be more complimentary?
Is the garden formal or informal?
What other materials being used in the garden and can any of these be utilised to create a uniform look?
How even is the ground?
How much effort will be needed to construct the path and will the budget allow? The range of products that can be used to construct a pathway is endless and only restricted by your imagination. Different products such as pavers and gravel may be combined to compensate for difficult terrain and awkward shapes. Choose non-slip materials when possible and if spacing the steps ensure they are a comfortable distance for walking.