Gardening Down-Under: A guide to healthier soils and       plants 
                     By Kevin Handreck (2001, 2nd Ed.).
                                     (21 February 2015)

A great book covering everything you need to know in order to grow healthy soils and plants in your backyard (including pot culture). It contains lots of useful photographs, diagrams and graphs covering types of soils and their components, and also identifying and remedying nutrient deficiencies/toxicities.