The Garden Editor of The Times has brought together articles done for the garden section by authorities in many areas, and the resulting collection covers virtually all aspects of gardening philosophy and aspirations. The one exception -- and this is implicit in some of the overlapping subjects -- is the rock garden. This is not a how to do it book, but the concepts of garden planning, the practical approach to selection of trees- or shrubs- or perennial -- or little bulbs -- or foundation planting, or what have you. Lots of good practical ideas here, with enough of specifies in the way of suggestions of plants for inclusion under topical heads. But it is not a book for the aspiring gardener who needs a handbook, a guide. Those who have clipped pieces from The Times over the years, will doubtless find most of them brought under one cover.