This month's issue of Wallpaper* includes Wash+, a special kitchen and bathroom supplement featuring catch-ups with some of our favourite international designers. Read the full interviews, in a five-day series, exclusively on wallpaper.com. Today: designer Piero Lissoni.

Architect and designer Piero Lissoni was only six years out of college when he started his post as Art Director and Designer at Boffi. Together with Nicoletta Canesi he founded Lissoni Associati in 1986 and as well as furniture design for Alessi, Cappellini, Cassina, Kartell and Poltrona Frau, he has also realized a range of successful industrial and graphic design projects including lighting and packaging. Lissoni has also completed several interior design projects for private residences as well as luxury hotels, showrooms and two resorts in the US, in Miami and Turks & Caicos.

Are you a bath or a shower man?

I normally prefer to shower as I think it's sexier and easier. Also I have a huge shower, which makes the ritual a real pleasure. It's always my first thought when I wake up in the morning and it always brings happiness rather than seems like a chore.

Describe your bathroom?

I have five bathrooms in my house, four are en-suite and one is just a guest toilet. I am lucky because I am able to have a big space dedicated to my bathroom. My bathroom is pretty perfect. I have a separate shower and bathtub and I have it very clean and white. Some of the items are Boffi but I don't like to have the whole thing from one company, I don't like to feel like I�m living in a catalogue. If I was to redesign it I'd probably leave it like it is, except maybe I'd add a steam bath and some nice girls.

Do you think how we perceive the bathroom has changed over the last decade?

The idea of the bathroom has been completely modified. Before it was an ugly, secret room and now it's a beautiful, open space. The layout, quality and materials have all changed dramatically.

What innovations have you and your design team brought to the industry?

I don't think it has to always be about innovation, to discover old materials and use them in a different way can be just as rewarding. I think it can be more important to use what we have in the correct way. That said over the years we have used revolutionary technology. The taps and showers at Boffi now use 30% less water because of a mechanism that allows water to pass through stronger but mixes it with air making the water feel nicer and be more economical.

How do you think you'll change bathroom design in the next five years?

I can't answer that - I live day by day. I'm not arrogant enough to think I can change the life of everybody.