Columbia subject headings:
Artists' books--Collectors and collecting--Congresses.
Artists' books--Germany--Wolfenbüttel--Congresses.
Herzog August Bibliothek--Congresses.
Libraries--Special collections--Art works--Congresses.
Harvard subject headings:
Artists' books--Collectors and collecting--Congresses.
Artists' books--Germany--Wolfenbüttel--Congresses.
Herzog August Bibliothek--Congresses.
Libraries--Special collections--Art works--Congresses.
Princeton subject headings:
Artists' books--Collectors and collecting--Congresses.
Artists' books--Germany--Wolfenbüttel--Congresses.
Herzog August Bibliothek--Congresses.
Libraries--Special collections--Art works--Congresses.