ISTJ Development Booklet

ISTJs take their energy from the inner world of thoughts (and, maybe, emotions). They prefer dealing with facts, and making decisions after considering the various options. They organize their life on a logical basis. Psychological Type Indicator (PTI) booklets provide an easy-to-understand reference for this type (based on Carl Jung's psychological type theory). Each booklet also includes a one page overview on each of the four relevant preferences. These pages make suggestions regarding time m