This document contains contact information for Sinan Si Alhir, an enterprise transformation coach, trainer, consultant, and practitioner with a focus on business agility and antifragility. It provides his email, phone number, website, and social media profiles. The document also includes brief summaries of concepts from the book "Antifragile" by Nassim Nicholas Taleb, such as definitions of fragility, resilience, robustness, and antifragility. It describes how antifragility means gaining from exposure to randomness, disorder and uncertainty. The final section lists the core competencies of coaching as defined by the International Coaching Federation.