Mind tools - ebook by James Manktelow
I came across this in the mid 90's, still reads well. an excellent collection of thinking tools strategies, methods.
they say:
James Manktelow has developed Mind Tools since 1995. The Mind Tools concept started with his research into the practical skills and techniques he needed toprogress his own career - he found it frustrating that so many simple, but important, life and career skills were so little known and taught
