This seminal volume, which in many respects is a foundational publication setting the future direction of the work of EMA, reports the past and ongoing discussions about the topics of sustainability, digital valorization, presentation, and preservation of cultural heritage. The proceedings are related to the first two workshops held by EMA and the Scuola Normale Superiore in Italy and dedicated to Kenneth Hudson, the great museologist who died in 1999, and with whom all the EMA founders actively collaborated.