Free Online Books and Textbooks, Music, Movies, and More

Skills for Success, English, Job Search, Careers, and Entrepreneurship Physics, Nanoscience, and Complexity
Mathematics (Calculus, Analysis, Linear Algebra, ODEs, PDEs,
Discrete Mathematics, Set Theory, Logic, Proofs, Number Theory,
Graph Theory, Topology, etc), Probability and Statistics
Engineering (Electrical, Mechanical, Industrial, Environmental, etc), MATLAB, Optimization,
Digital Signal Processing, Compressed Sensing, Mechatronics, and Sustainability
Solving Mathematical Problems, Game Theory, and Recreational Mathematics
Biophysics, Bioinformatics, Bioengineering, Evolution, Neuroscience, and Medicine
Economics and Finance
Chemistry, Chemical Engineering, and Food Science
Artificial Intelligence (Machine Learning, Neural Networks, Fuzzy Logic,
Genetic Algorithms, etc), Cognition, and Robotics
Business, Management, Knowledge Management, Quality Management, and Project Management

Programming, C/C++, Java, Perl, PHP, Python, Android,
Distributed Programming, and Algorithms
Creativity, Innovation, Design Thinking, TRIZ, and Invention

Software Engineering, Agile Methods, Testing, SCM, User Interfaces and Human Factors
For Honors Students  Art, Humanities, Literature, Social Sciences, Psychology, and Psychotherapy
Cybersecurity, Digital Forensics, Cryptography, Privacy, and Security Science Teaching, Instructional Technology, and STEM 
Computer Vision, Pattern Recognition, Computer Graphics, Computer Games,
Virtual Reality and Augmented Reality
Music, Dance, and Movies
Information Technology, Information Systems, Cloud Computing,
Internet of Things, Business Process Management, and Systems Thinking
Computer Science (Programming Languages, Theory of Computation, Databases, Semantic Web,
Data Mining, Big Data, Data Analytics and Visualization, Computer Architecture, Embedded and Real-Time Systems,
Networking, Human-Computer Interaction, Fun with Algorithms, etc), Information Theory and Coding Theory
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