The INTJ Explained — What is an INTJ?

What is an INTJ? There are sixteen different types according to MBTI. INTJ is one of these types, and according to many sources, the second rarest of the bunch (after INFJ). According to CAPT.org

INTJ Personality Type: The Architect

INTJ - Just let me explain to you why I'm right Metal Print for

INTJ-A Personality Meaning and Traits (Assertive Architects)