The Irwin book is good, but I haven't been able to get the others yet...
...The book is good because of the range of areas it covers, which are certainly more diverse than I expected. I assumed (or expected) it would ocncern itself mainly with ESp and psychokenesis, however, it does go into detail on other areas such as OBEs and polotergeists.
And, as well as the range of subject areas, it also gives good accounts of the details of each area, especially the experiemental side of the research, which makes a nice change from the mythology and case after case of supposition and theorising I usually find come with books on such topics as these... :yeay: