(Joint work with Bill Dwyer) Let K(m,n) denote the space of long m-knots in Rn,i.e.,the space of smooth embeddings of Rm in to Rn that agree with a fixed linear embedding outside a compact subspace.Let Bk denote the little k-balls operad.Modulo a framing adjustment,the embedding calculus of Goodwillie,Klein andWeiss leads to an identification of K(m,n) with the derived mapping space of linear Bm-bimodule maps from Bm to Bn.Starting from this,we identify K(m,n) as the (m+1)-fold loop space on the derived mapping space of operad maps from Bm to Bn.