Let us first….lavishly quote from wikipedia:

"I'm OK, You're OK, by Thomas A Harris MD, is one of the most successful self-help books ever published. It offers a practical guide to Transactional Analysis as a tool for solving problems in life. From its first release in 1969 I'm OK, You're OK gradually grew in popularity until, in 1972, it made the New York Times Best Seller list and remained there for almost two years. It is estimated to have sold over 15 million copies to date and has been translated into several languages.
In the opening preface, Harris hails the then-new approach of Transactional Analysis (TA, or as Harris often refers to it, P-A-C….Parent-Adult-Child) as a major breakthrough in understanding human behavior.

 His motivation for writing I’m OK, You’re OK is that TA offers an approach that is accessible, produces results and which can scale to offer many ordinary people affordable ways to overcome issues in their lives, particularly because it works in group situations.
The book starts with the observation that historic attempts to understand human nature have long recognised that individual personalities have multiple facets. Harris acknowledges the great advance made by Sigmund Freud in describing those facets in abstract terms such as Id, Ego and Superego, but also the challenge of trying to apply them to real life situations.

Rather than working with abstract concepts of consciousness, Harris suggests that the pioneering work of brain surgeon Wilder Penfield in uncovering the neurological basis of memory could offer complementary insights grounded in observable reality. Specifically, Harris postulates that the brain records past experiences like a tape recorder, in such a way that it is subsequently possible to relive past experiences with all their original emotional intensity.

Harris continues by linking his interpretation of Wilder’s experiments to the work of Eric Berne, whose model of psychotherapy is based on the idea that emotionally intense memories from childhood are ever-present in adults. Their influence can be understood by carefully analysing the verbal and non-verbal interchanges (‘transactions’) between people, hence Berne’s name for his model: Transactional Analysis. 

Harris sees great merit in the ability of TA to define basic units through which human behaviour can be analysed - the ‘strokes’ that are given and received in a ‘transaction’ between two or more people – and a standardised language for describing those strokes. This readily understood standardisation, and the link Harris sees between TA and Wilder’s neuroscience, gives TA a special credibility that makes it both superior to, and more easily understood by non-specialists, compared with earlier abstract models such as that put forward by Freud."

Then the author wrote a sequel…STAYING OK !

The books are potent….full of great insights and must reads !
 Well…now… that was some introduction…. Meaningful….but full of alien words!

To put it simply….Every human has three ego states:
PARENT
ADULT
CHILD

…and we all act/perform according to the ego-state that is HOOKED at the moment!

While the aim for everyone is…and should be….to stay OK….
 But…We are seldom so….. (OK means…. ….having a feeling of well being)

And the way to get OK is to get strokes!
 Wikipedia says : Strokes are the recognition, attention or responsiveness that one person gives another. Strokes can be positive (nicknamed "warm fuzzies"[4]) or negative ("cold pricklies").

( all this is not explained here in detail…as you might as well read the book)
What is explained here….in our PEGO SPIRIT is…..HOW TO ACHIEVE OK-NESS!

Seven  Mantras:

Understand that everyone was once a child and everyone is unique
Live in the present
Laugh …Cry….Smile….but  do express
Prayer is a great OK-ness provider
Communicate….talk….listen….tell !
Be an optimist…always !
Gain Knowledge…fly the plane….do not let it fly you !