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The scope of this volume will encompass a collection of research papers related to indexing and retrieval of online non-text information. In recent years, the Internet has seen an exponential increase in the number of documents placed online that are not in textual format. These documents appear in a variety of contexts, such as user-generated content sharing websites, social networking websites etc. and formats, including photographs, videos, recorded music, data visualizations etc. The prevalence of these contexts and data formats presents a particularly challenging task to information indexing and retrieval research due to many difficulties, such as assigning suitable semantic metadata, processing and extracting non-textual content automatically, and designing retrieval systems that "speak in the native language" of non-text documents. Literature reviews and theoretical frameworks Precedent or preference? The construction of genre and music recommender systems Multilingual taxonomy development for ordinary images: Issues and challenges Access to editorial cartoons: The state of the art Information behaviour studies Information behaviour and music information retrieval systems: Using user accounts to guide design Seeking what we have yet to know: A user-centred approach to designing music knowledge platforms Searching for music: End-user perspectives on system features A user study of moving image retrieval systems and system design implications for library catalogues Empirical knowledge organization studies An exploration of tags assigned to geotagged still and moving images on Flickr Exploring the effectiveness of ontology based tagging versus free text tagging That obscure object of desire: Facets for film access and discovery Designing and visualizing faceted geospatial ontologies from library knowledge organization systems Case studies Subject indexing of images: Architectural objects with complicated history An image based retrieval system for engineering drawings Emotion felt and depicted: Consequences for multimedia retrieval The critical role of the cold-start problem and incentive systems in emotional Web 2.0 services Non-textual information in gaming: A case study of World of Warcraft Index