These ideas and suggestions will hopefully answer your questions and of course inspire your creativity.

The size and shape of the knob dramatically affects the appearance of your furniture and cabinetry. A little trick to understanding knob sizes: cut our circles in 11/2" and 21/2" diameters and place them on drawers and doors

• Determine the mood you're trying to achieve.
• Keep it serious - For a formal look, select a knob style and use it in one or various diameters depending upon the size of the cabinet or drawer. This is particularly important when refurbishing a furniture piece.
• Keep it light - Colors, styles, sizes - mix them up!
• Be deliberate - Choose multiple knob styles within one color scheme.
• Be playful - Choose a different knob for every cabinet, no two alike.
• When determining the appropriate knob size, pay attention to the paneling on the cabinet door and the weight of the drawer contents. For example, if a raised panel is surrounded by a 2" border, you'll want to choose a knob with a 11/2" diameter.
• For drawers over 18" wide, try using two knobs or two pulls.
• Choice recipes for kitchen knobs and pulls...works for baths too!
• Planning your placement with pulls and knobs? Strategize - Mix the colors! Mix the styles! Mix the sizes!
• Think directional - pulls can be placed vertically or horizontally on cabinet doors.