In addition to his personal papers, Leach bequeathed his reference collection of historical ceramics and some ninety pots following the whole of his career as a potter since 1912. The wide-ranging historical ceramics are eclectic and diverse, ranging from a quiet but beautifully formed medieval pitcher from England to an exquisite porcelain bowl from Arita in Japan. All possess what Leach saw as the vital ingredients of ceramics - an awareness of material, an understanding of making and the ability to transcend the ordinary to have some extra quality. His own pots relate his own development, from early pieces made in Tokyo in 1912, including cups and saucers, magnificent earthenware slip-decorated dishes to the fine pieces made during the peak of his career in the late 1950s and 60s in stoneware and porcelain. They form a unique testament to his interests and his increasing sensitivity to his chosen material. Both the historical collection and Leach's own pots are subjects that merit study.