We’re the PrepEd team. Nice to meet you!

PrepEd Experts

Vince Kotchian

Leading test prep guru Vince Kotchian is the published author of 9 successful test preparation books. Vince has been teaching GRE and SAT full-time in San Diego for over 8 years.

John Yiseongjoon, PhD

John is the CEO of John's Academy, a successful tutoring school in Australia, and a research physicist at the Australian National University with a number of published academic journals.

Rich Carriero

Rich Carriero has been a teacher, tutor, writer, and consultant in the test preparation industry since 1999. He has over a decade of experience teaching for top test-prep tutoring schools.

Ashwini Nene

Ashwini is one of a handful of people in the world to achieve a PERFECT score on the GRE Exam. She did this using special knowledge and methods, which she teaches in her PrepEd courses.

Philip Geer, Ed.M.

Published author of over 12 leading test prep books, Philip is a world renowned expert on the GRE and SAT. Philip has been helping people prepare for over 20 years and is well known for his many high scoring students.

Jeff Kolby/Nova Press

Jeff Kolby is a world-leading exam prep expert, and the published author of over a dozen books on exam preparation. Jeff is also the president of Nova Press, a leading test prep publishing firm based in California

The PrepEd Team

PrepEd was made possible by our amazing team of talented engineers, designers, marketers, business operators, and writers.


Company founder Marc Slater uses his 15 years of software and online business experience to keep PrepEd moving forward, and spends his free time with his kids, his guitar, and his favorite books.


After receiving a Bachelors in Software Engineering with Honours, Gregory became PrepEd’s server coding guru. He enjoys playing board games, but when the weather’s good, he’s outside rock climbing.


Rick’s decade of experience in marketing and business development makes him an important member of the PrepEd team, and his Shih Tzu and German Spitz dogs think he’s pretty great, too!


Interface design expert, and former computer teacher, Veda creates PrepEd’s websites and graphics, and continues her creativity at her 5-dog home by following art and fashion trends.


Arianna (Yan) won several academic honors before joining PrepEd. Yan brings her knowledge of marketing and investment to the team. In her free time, she enjoys playing basketball and softball.


Anyone who’s been named Programmer of the Year is welcome on the PrepEd team, and Gideon is no exception! At work, he uses a computer keyboard; at home, it’s a piano keyboard.


Having achieved academic success with a Magna Cum Laude in Computer Science, Jomelyn is a vital part of PrepEd’s dev team. She spends her free time playing Scrabble and watching movies.


Bryan brings a background in risk management and computer technology to the PrepEd roster, and when he’s not at work he’s at home cooking for his baby boy, or out enjoying nature.


With his knowledge in quality assurance and coding, Dominique has made sure that PrepEd products are top quality. After work, he either plays a computer game, basketball or reads Chinese fantasy novels.


Having a degree in Commerce majoring in Management Accounting, Charlyn is in charge of administrative tasks in the PrepEd team. In her spare time, she does gardening, cooking and decorating.


Not afraid of responsibilities, Laurence took on being a leader in college. He excels in art and now offers his design talent in the PrepEd team. He is also a music enthusiast who plays the guitar and loves to go on food adventures.


Gabriel has a degree in Information Technology and graduated with honors. As a part of PrepEd's dev team, he lends his skills as a front end developer. His hobbies include drawing and playing mobile/PC games.


Equipped with skills in Information Technology, Kurt contributes to the team by making sure that PrepEd is top-tier. On his days off, he likes to play mobile games and go on road trips.


Monica graduated with honors in the field of Information Technology which is why she's a valuable member of PrepEd's dev team. When she wants to unwind, she listens to podcasts and play mobile games.


Graduating with honors in Computer Engineering, Paolo imparts his knowledge and skills in PrepEd's dev team. In his free time, he enjoys being around his dogs and occasionally plays the guitar.