The three-volume set CCIS 1224, CCIS 1225, and CCIS 1226 contains the extended abstracts of the posters presented during the 21st International Conference on Human-Computer Interaction, HCII 2020, which took place in Copenhagen, Denmark, in July 2020.* HCII 2020 received a total of 6326 submissions, of which 1439 papers and 238 posters were accepted for publication in the pre-conference proceedings after a careful reviewing process. The 238 papers presented in these three volumes are organized in topical sections as follows: Part I: design and evaluation methods and tools; user characteristics, requirements and preferences; multimodal and natural interaction; recognizing human psychological states; user experience studies; human perception and cognition. -AI in HCI. Part II: virtual, augmented and mixed reality; virtual humans and motion modelling and tracking; learning technology. Part III: universal access, accessibility and design for the elderly; smartphones, social media and human behavior; interacting with cultural heritage; human-vehicle interaction; transport, safety and crisis management; security, privacy and trust; product and service design. *The conference was held virtually due to the COVID-19 pandemic. The chapter "“Developing an Interactive Tabletop Mediated Activity to Induce Collaboration by Implementing Design Considerations Based on Cooperative Learning Principles” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Every second a new person is exposed to tuberculosis (TB). Each untreated TB-infected person will infect 10-15 people every year. Following the success of its predecessor, this new edition of Tuberculosis: The Essentials scrutinizes the new discoveries and observations of the key aspects of the disease. Recognized world experts provide a concise, state-of-the-art review of the 15 essential elements of TBsupply an international, current view of the epidemiology, pathophysiology, diagnosis, and treatment methodsdiscuss the emerging threat of XDR-TB and the HIV/AIDS factorassess advances in TB research such as new drugs and vaccinesreflect on the progress of the "Stop TB" strategy.

"This is the colorful and dramatic biography of two of America's most controversial entrepreneurs: Moses Louis Annenberg, 'the racing wire king, ' who built his fortune in racketeering, invested it in publishing, and lost much of it in the biggest tax evasion case in United States history; and his son, Walter, launcher of TV Guide and Seventeen magazines and former ambassador to Great Britain."--Jacket.

(Piano/Vocal/Guitar Artist Songbook). 12 songs from the third album by this Mississippi rock band: Behind Those Eyes * Here by Me * It's Not Me * Landing in London * Let Me Go * My World * The Real Life * Right Where I Belong * and more.