With every client there may be unique letter combinations together with their corporate activity, ideals or name that can allow a truly great identity.
Breaking solid shapes into discrete, separate shapes is a valuable tool for logo design.
Planar shapes represent shadows with solid shapes. Silhouettes show an overall contour with solid shapes. Both techniques can make good logos.
Containment can be as shallow as putting a shape around a signature or it can be the saving grace of a good design.