Some instructions concerning the art of oratory collected for the use of a friend a young student - Walker, Obadiah 1616-1699 (Printed by J.G. for R. Royston, 1659)
"Usually attributed to Walker, who may, however, have worked from materials provided by his tutor, Abraham Woodhead, to whom it is also ascribed in the DNB." cf. NUC pre-1956. - Reproduction of original in Bodleian Library. - Wing, W410