GMAT Tutors, Events, and Resources

Carl has taught, literally, thousands of students to succeed on the GMAT, and thousands more the ACT, SAT, GRE, and LSAT, over a career spanning over two decades in the test preparation world. Originally an academic, he holds advanced degrees from Yale, the University of Glasgow, and the University of Georgia, and since leaving academia he has taught, tutored, and written content for Magoosh, Kaplan, Harvard Prep, SuccessPrep, Parliament Tutors, Varsity Tutors, and many other companies, and has since founded his own company, Ivory Tower Tutoring. He was also, for many years, the chief writer for Barron''s GMAT product line.

The only way to do well on the GMAT and the GRE is to understand the material and to know how to answer the questions. Cheats and guessing strategies don’t work, and you can’t “beat” or “outsmart” the tests. I am a Certified Teacher who has taught the material that appears on these tests in school. MY APPROACH IS TO TEACH YOU THE CONCEPTS AND SKILLS YOU NEED TO ANSWER THE TEST QUESTIONS CORRECTLY. I scored in the 99th percentile on the GMAT and the SAT, and I have a thorough understanding of the tests. I am a writer, with excellent language skills. As a Certified Teacher, I have 20-plus years’ experience as a teacher, tutor, test prep coach, and business trainer. I am a former teacher of high school math – exactly the math that appears on the tests – and of English grammar and writing. I am a trained and certified teacher. I have a Bachelor of Education degree and Adult Education training. I also have an MBA and have worked on Wall St as a Vice President at a major financial institution, as well as in several other business and management positions.

I scored over 650 on the GMAT Focus, and I know what it takes to get there. Whether you're struggling with data insights, verbal reasoning, or test strategy, I’ll help you break down the content and build the confidence you need. Together, we’ll develop a personalized study plan, tackle tricky questions, and maximize your performance on test day—without burning out.

Note: Due to high demand, I do not offer free intro calls or discounted sessions. Thank you for understanding. I didn't just walk in and get a perfect score. My first score was in the 50th percentile. I studied my way to 99th percentile, so it's definitely possible. I have a 99th percentile score on the GMAT, GRE, and SAT, and have taught for Manhattan Prep, Kaplan, and Target Test Prep. I don't just teach the content. I teach how to think. I have a Masters in Education from Harvard and have written a book on the mental approach to standardized tests.

I like to think myself as a cheerleader on your journey to unlocking your future. I come on board with the understand that this is one of the most important things you will do for your future, and I'm here to push you to reach your best. With over a decade of experience in test preparation, I have designed and delivered GMAT programs for top organizations like Veritas Prep and Leverage Edu. As the former Head of Academics at Veritas Prep, I crafted comprehensive GMAT, GRE, and SAT curriculums that have helped students both domestically and internationally. With a 99%ile score on the GMAT, I have successfully coached over 5000 students, guiding them to improve their scores and gain admission to their dream schools. My approach is tailored to each individual's needs, ensuring that you not only achieve your target score but also build confidence in your test-taking abilities. Whether you're coming back to the books after a long time, reattempting the GMAT, or just want access to the best prep (modesty aside!), I've got you covered.

Scored 705 on GMAT FE with 3 months of prep. As someone who studied for the LSAT while working full time, I can guide around the pitfalls that are common to working professionals and accelerate your progress while accommodating to a professional's schedule.

I believe success on the GMAT is not just about intelligence—it’s about having the right strategy, understanding patterns, and learning how to think through problems efficiently under time pressure. Through my experience solving complex business problems and working in high-performance environments, I’ve developed a structured approach to breaking down challenges into clear, manageable steps. That same approach applies directly to GMAT preparation: identifying weaknesses, building efficient problem-solving frameworks, and creating a study plan that drives measurable improvement. Having recently gone through the MBA journey myself, I also understand that the GMAT can feel overwhelming because it sits alongside work, applications, and other commitments. My goal as a coach is not only to help students improve scores, but also to help them build confidence and avoid wasting time on ineffective preparation strategies. I focus on helping candidates understand the “why” behind questions, develop repeatable methods, and approach the exam with clarity and confidence.

I spent a VERY long time studying the GMAT only to come up very short on GMAT math. Twice. Then I spent weeks doing nothing but studying those who ACED the exam, with an emphasis on those who did so after having middling scores. The result was a big change in my study and practice process. And I went from 54th percentile math scores TWICE after lots and lots of study, to getting the effective high score on the GMAT Math after only a couple months of study with my new process. I will show you exactly how I did it so you have the same framework and standards I had.

With over a decade of experience in test preparation, including my current role as an instructor and coach at Target Test Prep, I specialize in helping students achieve their GMAT goals. My journey began with a 99th percentile GMAT score, which led to my selective hiring at Manhattan Prep, where only 99th percentile scores are considered, and 7% of those are chosen. Since then, I've coached many individuals, guiding them to improve their scores and gain admission to top business schools. My approach is rooted in authenticity, humility, and expertise, as reflected in my average teacher rating of 3.95 out of 4. Let's work together to create a personalized plan to conquer the GMAT and reach your dream school!

Welcome to my profile! With over two decades of experience, I specialize in helping high-achieving students excel in the world's most competitive admissions exams, including the GMAT, GRE, Digital SAT, and ACT. Based in the Netherlands, I work with a global roster of applicants, providing expert, data-driven coaching that focuses on mastering the tactical frameworks required to score in the top 1%. My unique approach involves reverse-engineering test algorithms and teaching students to identify common test-maker traps, leading to significant score increases within 10–15 sessions. I've successfully guided 100+ students to secure seats at prestigious institutions like Harvard, Stanford GSB, and INSEAD. Let's work together to achieve your target score and open doors to your dream school!