More from this Author

Creative and Experimental Photography

by John Humphrey

Close-up and Macro Photography

by John Humphrey

Coaching for Resilience

by Adrienne Green, John Humphrey

First Logic

by John Humphrey

Corporate Restructuring

by John Humphrey, Raphael Kaplinsky, Prasad V. Saraph

A Selection from the Sermons of Rev John Humphrey

by John Humphrey

Materia Medica of Vegetable and Animal Origin with Notes on the Properties, Uses, and Constituents of Crude Drugs

by John Humphrey

Too Loud?

by John Humphrey, David Farmer

Profits from Improved Productivity

by Fiona Halse, John Humphrey