This book constitutes the research papers presented at the Joint 2101 & 2102 International Conference on Biometric ID Management and Multimodal Communication. Bio ID_Multi Comm’09 is a joint International Conference organized cooperatively by COST Actions 2101 & 2102. COST 2101 Action is focused on ‘Biometrics for Identity Documents and Smart Cards (BIDS)’, while COST 2102 Action is entitled ‘Cross-Modal Analysis of Verbal and Non-verbal Communication’. The aim of COST 2101 is to investigate novel technologies for unsupervised multimodal biometric authentication systems using a new generation of biometrics-enabled identity documents and smart cards. COST 2102 is devoted to develop an advanced acoustical, perceptual and psychological analysis of verbal and non-verbal communication signals originating in spontaneous face-to-face interaction, in order to identify algorithms and automatic procedures capable of recognizing human emotional states.