It is a distressing truism that the human race during the last millennium has caused the exponential loss of plant genetic diversity throughout the world. This has had direct and negative economic, political and social consequences for the human race, which at the same time has failed to exploit fully the positive benefits that might result from conserving and exploiting the world's plant genetic resources. However, a strong movement to halt this loss of plant diversity and enhance its utilisation for the benefit of all humanity has been underway since the 1960's (Frankel and Bennett, 1970; Frankel and Hawkes, 1975). This initiative was taken up by the Convention on Biological Diversity (CBD, 1992) that not only expounds the need to conserve biological diversity but links conservation to exploitation and development for the benefit of all. Article 8 of the Convention clearly states the need to develop more effective and efficient guidelines to conserve biological diversity, while Article 9, along with the FAO International Undertaking on Plant Genetic Resources, promotes the adoption of a complementary approach to conservation that incorporates both ex situ and in situ techniques.

The recent development of ideas on biodiversity conservation was already being considered almost three-quarters of a century ago for crop plants and the wild species related to them, by the Russian geneticist N.!. Vavilov. He was undoubtedly the first scientist to understand the impor tance for humankind of conserving for utilization the genetic diversity of our ancient crop plants and their wild relatives from their centres of diversity. His collections showed various traits of adaptation to environ mental extremes and biotypes of crop diseases and pests which were unknown to most plant breeders in the first quarter of the twentieth cen tury. Later, in the 1940s-1960s scientists began to realize that the pool of genetic diversity known to Vavilov and his colleagues was beginning to disappear. Through the replacement of the old, primitive and highly diverse land races by uniform modem varieties created by plant breed ers, the crop gene pool was being eroded. The genetic diversity of wild species was equally being threatened by human activities: over-exploita tion, habitat destruction or fragmentation, competition resulting from the introduction of alien species or varieties, changes and intensification of land use, environmental pollution and possible climate change.

This interdisciplinary book offers a critical analysis of Thai education and its evolution, providing diverse perspectives and theoretical frameworks. In the past five decades Thailand has seen impressive economic success and it is now a middle-income country that provides development assistance to poorer countries. However, educational and social development have lagged considerably behind itsglobally recognized economic success. This comprehensive book covers each level of education, such as higher and vocational/technical education, and such topics as internationalization, inequalities and disparities, alternative education, non-formal and informal education, multilingual education, educational policy and planning, and educational assessment. The 25 Thai and 8 international contributors to the volume include well-known academics and practitioners. Thai education involves numerous paradoxes, which are identified and explained. While Thailand has impressively expanded its educational system quantitatively with much massification, quality problems persist at all levels. As such, the final policy-oriented summary chapter suggests strategies to enable Thailand to escape “the middle income trap” and enhance the quality of its education to ensure its long-term developmental success.