The reference library of any great man is of exceptional value to the historian and scholar. To be able to establish beyond question the direct influences and subsequent ideas derived from this personal source lends an insight into the mind not possible in any other way. Conrad Martens' position in Australian art is undoubtedly important, both as a practising artist and an art teacher of great influence. This collection illustrates his employed techniques and thus the developing style of 19th century landscape painting in Australia.