Keithley Instruments has made available free of charge its Nanotechnology Measurement Handbook, a 124-page guide to electrical measurements for nanoscience applications. The handbook offers practical assistance in making precision low-level dc and pulse measurements on nanomaterials and devices. It provides an overview of the theoretical and practical considerations involved in measuring low currents, high resistances, low voltages, and low resistances. It's useful as a reference and as an aid to understanding low-level phenomena observed in the lab. The book can be at ordered by filling out an online form (www.ggcomm.com).