Roman blinds are made of one solid sheet of fabric that folds up in pleats; Venetian blinds are constructed of narrow horizontal slats. Roman blind fabrics are often very elaborate and decorative, whilst Venetian blinds are minimalistic, and made of totally different materials.

There are no hard and fast rules but from a practical perspective, curtains work better for warmth and added texture, and blinds work well when space is tight. We usually say curtains are good for living rooms and bedrooms, blinds are good for kitchens and bathrooms.

Roller blinds are probably the most versatile of the two choices overall, but there is one trait that Venetian blinds have that roller blinds don't; the ability to filter, rather than just blocking the light.

If you are looking to control privacy in the rooms of your home, Venetian blinds may be the best option for you, since you can tilt the slats to suit your needs. Alternatively, if you want to allow the maximum amount of light in, as well as a refreshing breeze in summer, vertical blinds are a better bet.