Sale '25

CYBER WEEK SALE: 50% off the PTB Big Mock Exam I Discount applied directly at checkout.

Gift Card Bonus

$5 - $50 BONUS GIFT CARD: When you purchase a PTB Gift Card valued at $25 or more I GET IT NOW

BEPW

2026 WORKSHOPS: Sun. Jan. 4 @ 10:00 AM - 1:30 PM (PST) OR Tue. Jan. 13 @ 3:00 PM - 6:30 PM (PST) I Live Class Video Replays I REGISTER NOW

QBA Autism Manual

Mocks

PTB MOCK EXAMS: Choose From a Range of Peer-Reviewed, Academic, Exam-Like Quality Mocks. I Starting at $25

Payment Plans

EASE THE COST OF EXAM PREP I Payment Plans Available on All PTB Exam Prep Tools I EXPLORE NOW

Newsletter

Get Study Tips, Early Access to Prep Tools & Exclusive Discounts I PTB NEWSLETTER SIGN UP NOW

Control Systems Ganesh Rao Pdf -