This is the only comprehensive review system that exists. While it may not teach you everything, it teaches you what you need to PASS and be comfortable.

Thanks for helping this dumb jock pass the Core. Your materials are definitely the best out there.

Most awesome radiology lectures/talks hands-down, ever. Straight to the point. Strategy-based and entertaining. Helping me TONS. I love you Prometheus !!

The videos are a great way to study and get through the book quickly. The video illustrations/diagrams also helped explain the physics concepts very well.

I used CTC for both the ABR CORE and the written portion of the Canadian exam. Speaking specifically to the Canadian exam it was far better than Primer and other resources I had tried for targeting our MCQ section. It would not be sufficient for Oral exam prep, but its great as a starting point for organizing your knowledge base. He has a fantastic, engaging style of writing which kept me motivated for the long slog through 2 board exams this past year, both of which were successfully passed!

Learned a ton from your book, I wish I started using it earlier on. The way you present things just clicks!

I passed the CORE because of you!! Thank you so much for all the hard work compiling these resources. You are the MAN!! The Goljan of the CORE!!

All I wanted to do was pass my boards. I studied two question banks, Crack the Core, Board Buster videos and prayed for two months (prayers are ongoing). I didn't just pass, I did well and scored 560 (350 is passing). The Board Buster lectures were good and I would have watched them more but I had to turn them off around my wife and kids because of Lionheart's cursing.