Update 2021 03 23
Bookshare (Freely Available Books) – more than 9 000 free digital books on various topics. You might be interested in: Art and Architecture collection and its books: Principles of Art History; A Pictorial History of Costume From Ancient Times to the Nineteenth Century; Towards a New Architecture; 124 Distinctive House Designs and Floor Plans; Art Nouveau Graphic Masterpieces; Picasso; The Painter in Oil; The Technique of Pencil Drawing; Perspective for Artists; Anatomical Diagrams for Art Students. Database is supported by non-profit organisation Benetech.
Duke University Press (Art and Visual Culture) – open and free e-books, separate journals and books chapters on visual arts, published by Duke university (USA) press. During search select „Availability“: „Open Access“ and „Free“.
EOD (eBooks on Demand) – database on books published in XVI – XX centuries. Notable collection Fine Arts and its books: Le antiquità di Roma; Graphic illustrations of Hogarth; Lectures on Sculpture; Memoirs illustrative of the art of glass-painting; The Flemish, Dutch and German Schools of Painting; The Palace of Architecture: a Romance of Art and History; Histoire de la céramique; Ancient unedited monuments; Iconographie chrétienne. Database is created by Europe libraries in EODOPEN net. For free books in „All fields“ write in „kostenfrei“.
E-Books Directory – notable collection Arts & Photography and its books: Introduction to Art: Design, Context, and Meaning; Building Green; Moving to Sustainable Buildings; Art, Design and Visual Thinking; A History of Art for Beginners and Students; Drawing Futures; Famous European Artists.
EThOS (e-theses online service) – More than half a million PhD dissertations from United Kingdom universities. Free access is available on intitutions depositories. Downloading a dissertation may require a fee.
Getty Publications ir Getty Images – open access publications (300) and images (155 382) collections from The J. Paul Getty Trust organisation. Notable e-book collections: Architecture; Art History and Criticism; Decorative Arts; Drawings; Paintings; Photography; Sculpture;
Peter Lang (Open Access Content) – open access books and chapters published by Peter Lang (Germany) press. Notable collection The Arts and its books: Chinese reverse glass painting 1720-1820; Seeing Renaissance Glass; Lef and the Left Front of the Arts; Les modernes d’Egypte. During search select „Refine by access“: „Open access content“.
Visuotinė lietuvių enciklopedija – open access encyclopedic articles, from printed Lithuanian encyclopedia. Electronic version is regullary updated. Notable topics: History: Lithuanian language; Art; Mythology; Science; Heritage; Religion.
Encyclopaedia Britannica – partially open and renewed British encyclopedia, published from 1768. Interesting topics: Humanities and Visual Arts. Subjects: Architecture; Arts Awards; Decorative Art; Fashion Design; Graphic Art; Installation & Performance Art; Painting; Photography; Sculpture. Picture gallery: Visual Arts. Videos: Visual Arts.
The European Journal of Aesthetics – open access academic philosophy journal included in internationally recognized academic databases: Web of Science and Scopus. Published by Helsinki University Press (Finland) And Charles University, Faculty of Arts (Czech Republic).
RIHA Journal – open access academic journal on visual arts history, included in internationally recognized academic databases: Web of Science and Scopus. Published by The International Association of Research Institutes in the History of Art (Germany).
Res Mobilis: International Research Journal of Furniture and Decorative Objects – open access interior and furniture design academic journal in English and Spanish included in internationally recognized academic database Web of Science. Published by University of Oviedo, Art History and Musicology Department (Spain).
Don't forget to check earlier links:
Open Access; II; III; IV