If you need a space for working from home, or just a relaxing area to browse from, a custom-made suite can be both formal and homely. Here's an example of a home office suite that doesn't look out of place when guests need to use the room as a bedroom:
Oak desk 170cm x 50cm x 75cm high. Like the corner desk featured in the Bedroom page, this can also double as a dressing table for guests
Two separate units to go under the desk; 60cm high, 40cm x 40cm. One 4 drawer unit, one with a single drawer and cupboard. The cupboard door catch is made by embedding rare earth magnets, which create a much nicer feel on opening and closing. Both are mounted on casters so they can be moved easily to double up as bedside tables.
Tapered 5 shelf unit in oak. 170cm high, 65cm x 45cm at the base. The sides are open to create a less domineering feel in the room, and the side pieces are angled to tie in with the legs of the desk.