1. A brief and simple review of plant-arthropod relationships -- 2. Plant-feeding insects and arthropods of the geological past -- 3. An early twentieth century classification of food plant selection among phytophagous insects -- 4. Relationships between insects and fungi -- 5. Physiology of food selection -- 6. Carnivorous and protocarnivorous plants -- 7. Myrmecophily and ant-plants -- 8. A rare plant-insect relationship: epizoic symbiosis -- 9. Galls and mines -- 10. Insect mimicry and homochromy in relation to plants -- 11. Natural weed control in the Holarctic region and in the tropics using phytophagous insects -- 12. Pollination -- 13. Coevolution (or not) between insects and plants -- 14. A general review of insect-plant relationships; some thoughts about learning; the canopy -- 15. Epilogue

1. Insect-plant relationships