Within the scope of the mission of ‘Producing and Sharing Knowledge’, we are happy to publish the book of 2nd volume of the Journal of Architectural Sciences and Applications. Despite all the negative effects of the Covid-19 epidemic, we accomplished to publish our book ‘Architectural Sciences and Sustainability’ composed of seventeen chapters written by twenty-seven authors from different disciplines: architecture, interior architecture, city and regional planning, and landscape architecture. We would like to thank all the authors for their contributions to academic production in our field and all readers for their support in advance.