The Passive House Institute, in cooperation with the University of Innsbruck and iPHA – The International Passive House Association, is delighted to offer an intro- ductory, English-language Passive House seminar as a precursor to the 15th International Passive House Conference. Entitled Passive House Basics, this full-day course is ideal for both first time Conference participants and for all those wishing to refresh their Passive House knowledge. Passive House essentials such as heating and cooling, airtightness and thermal bridge free construction, indoor air quality, ventilation, cost-effectiveness, certification as well as built examples in various climate zones will be covered by prominent Passive House experts, including Univ. Prof. Dr. Wolfgang Feist himself. Come celebrate the 20th anniversary of the Passive House by letting Passive House Basics bring you up to speed and help us take the Passive House Standard into its third decade.