The recipies in this book were submitted by French magazine readers, and cover a wide variety of traditional preservation techniques: preserving with vinegar, oil and sugar; preserving with alcohol; preserving by lactic fermentation; and several other techniques.
If you're looking for straightforward, easy, safe recipies for preserving food, you'll find this book a mixed blessing. Many recipies omit quantities, and few of them have been tried in any sort of test kitchen. Most importantly, a number of these traditional recipies involve important food-safety issues--as the book itself repeatedly makes clear. You will, however, find many excellent ideas in the chapters on oil, vinegar, sugar and alcohol.
If, however, you're interested in traditional food-preservation techniques, this book is uniformly excellent. The chapter on lactic fermentation of vegetables is fascinating, and the diversity of preservation techniques is remarkable.