The use of biometrics in human recognition is rapidly gaining in popularity. Considering the limitations of biometric systems
with a single biometric trait, a current research trend is to combine multiple traits to improve performance. Among the biometric
traits, the face is considered to be the most non-intrusive and the ear is the most promising candidate to be combined with
the face. In this survey, existing approaches involving these two biometric traits are summarized and their scopes and limitations
are discussed. Some challenges to be addressed are discussed and few research directions are outlined.