Despite the complexity of your curriculum, we believe in the simplicity of the test.

Keep Your Book Open is an online tutoring and study platform dedicated to unshackling simple truths from the stranglehold of test makers and curriculum developers.

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“My experience was amazing. KYBO made it fun and engaging while effectively communicating ways to improve performance.”

Tess S. in Dallas | PSAT 1220 to 1440 SAT

Get In Touch

You were referred our way for a reason. The sooner you get on our radar, the better your chances of securing access to our content and tutors for the current or coming school year. Complete the form here to contact us or join our waitlist.

A modern student needs an advocate: someone to call on.

  • a tutor whose lessons coordinate with your math curriculum
  • a coach who can raise your test scores with targeted dialogue
  • a research assistant who lives in an app in your pocket
  • an expert who can train you to utilize your powerful technology

Don’t take our word for it.

Check out some words from our recent satisfied students and parents. Join the KYBO.club to stop working so hard and experience your own score maximization.

  • “Our daughter loved her lessons with Josh and Mark and felt very prepared going in to her ACT tests. We are very happy with her scores and are grateful to KYBO for helping her to achieve her full potential.”
    Christy M.
    Dallas, TX
  • “It was a pleasure to work with Mark on improving my GRE score! His high energy, encouragement, and abundance of knowledge made preparing for the GRE easier. With his help, I was accepted into a MBA program.”
    Henslee O.
    Wichita Falls, TX
  • “Mark’s patience, wit, and creativity made each lesson fun and fruitful. I scored a 740 on the 2014 SAT Writing section, and my Reading score grew from a 610 to a 710. 5 years later, I scored in the 99th percentile on the GMAT Verbal with no additional preparation by purely relying on Mark’s initial lessons.”
    Brandt W.
    Charlottesville, VA
  • “Mark is an ACT wizard – very engaging and adaptable to all styles of learning! He helped my son get a 36!”
    Ashley H.
    Dallas, TX

24/7 access to perfect score wisdom

The KYBO Club is our members-only test prep wonderland, chock-full of categorized practice problems, daily video request fulfillment, video lessons with self-grading quizzes, and private livestream access.

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