MaryMac Books


For more than 30 years ITD has been Australia’s leading training organization using Jung’s theory of Psychological Types and related instruments, including the MajorsPTITM and the Myers-Briggs Type Indicator (MBTI®) instrument.  We continue to provide high quality training and certification in psychological type theory and the application of type theory.

Please contact Mary McGuiness on 0417661104  if you have any questions.

Online Books


Ideal resource for introducing clients to type.     

Packed with information, including two pages 

about each type!    

RRP $13. Bulk discounts available. 

Written and published in Australia.


2020  Covid-19                                                                       

Due to social distancing recommendations during the covid-19 

pandemic ITD has temporarily suspended face to face workshops 

and certification programs. We expect to resume these later in 2020.

For now we are offering some VIRTUAL training and seminars.

In-house VIRTUAL training and consultations are also available.


Join us for a FREE VIRTUAL Seminar 

Managing Stress in 2020.

July 14,     1.00pm - 2.30pm. 

Focus - How do different types handle the changes related to covid-19, 

social distancing, working from home, schooling children, wearing masks? 

What help can type theory give us?     ... some simple strategies.

To REGISTER ....Call  ITD  on 0417661104  or  EMAIL

Please register by July 10 and send any questions you would like addressed. You will receive an email confirmation and instructions on how to join the group.  





Coming in July..... 

VIRTUAL training

Majors Personality Type Inventory    

Certification Program

starting July 27, 2020

Become certified to purchase and

use this amazing instrument.

             Discounts are available for all paricipants.

Places will be limited.

Contact ITD for details: 0417661104

Other VIRTUAL programs coming in July and August:

MajorsPT- Elements (Step II)   

  Using Type in Coaching   




 Registration Form

 Book Order Form