PercBook is a mobile learning module(reviewer) designed to enhance and strengthened knowledge about various subjects in review courses and college subjects. An engineering learning material, reviewer, and multiple choice questions.

Passers Mastery Module (PMM) ELEX is patterned on the ECE Board Syllabus and composed of 4280 questions and is equivalent to a 2500-page Book.

PMM ELEX contains the following topics:
Chapter I. Electricity and Magnetism
Chapter II. Electrical Circuits
Chapter III. Solid State Devices Circuits
Chapter IV. Power Generator/Sources/Principles/ Applications
Chapter V. Electronic (Audio/RF) Circuit/Analysis/Design Cells and batteries
Chapter VI. Test and Measurements
Chapter VII. Microelectronics
Chapter VIII. Industrial Electronics Principles/Applications
Chapter IX. Computer Principles

The PercBook is hybrid (Online & Offline Operation)
Use online(Internet or data) to:
- Register & Submit Exams
- Create & Join Class
- View Exams of Students ( for teachers/mentors)
Offline:
- Study Learning Essentials
- Can take Formative Exams
- Take Section Mastery exams
- Take Chapter Mastery exams
- Take Book Mastery exams
- Review "My Performance"

Also Available:
Passers Mastery Module (PMM) - MATH
Passers Mastery Module (PMM) - GEAS
Passers Mastery Module (PMM) - ESAT
Passers Mastery Module (PMM) - Differential Calculus