Complex sentence: David Airey is a brand identity designer and author, and has created, and continues to create, visual identities for companies including Yellow Pages (Canada), Giacom (England), and Berthier Associates (Japan).
Split into simpler sentences: David Airey is a brand identity designer and a brand author, and has created, and continues to create, visual identities for several companies. A few companies include Yellow Pages (Canada), Giacom (England), and Berthier Associates (Japan).