Haydn#s late piano sonatas Hob. XVI:40#42 (1784) and Hob. XVI:48#52 (1788-95) reveal him to be a distinctive and consummate master in terms of form and expression. These technically brilliant works, the quintessence of his sonata output, reflect the fresh inspiration he received in London. This new Urtext edition presents these piano sonatas in a spacious engraving. The early version of the second movement of the Sonata in C major, Hob. XVI:50, is reproduced in the appendix. Rounding off this performing edition are historically informed fingering and valuable notes on period performance practice by Rebecca Maurer, a highly acclaimed harpsichord and fortepiano player.