Thin films of uniform MoS2 nanoparticles smaller than 10 nm, were produced by electrochemical deposition on conducting glass from nonaqueous solutions of (NH4)(2)MoS4 in ethylene glycol. The as-deposited films were x-ray amorphous with a composition determined by electron probe microanalysis close to MoS2. Transmission electron microscopy, selected area diffraction, and high resolution electron microscopy (HREM) showed that the particles are hexagonal 2H-MoS2 having a size distribution ranging from 3 to 10 nm. HREM showed clearly that the nanoparticles had flat facets and that they were deposited with their van der Waals (002) basal planes perpendicular to the substrate surface (type I texture) exhibiting the (100) and (110) edge planes to the surface. Optical studies revealed size quantization effects in their optical absorption spectra.