Practical Shader Development: Vertex and Fragment Shaders for Game Developers
Getting Started with OpenGL ES 3+ Programming: Learn Modern OpenGL Basics (Modern Graphics Programming Primer & Tutorials)
Computer Graphics Programming in OpenGL with C++
OpenGL Shading Language
GPU Pro: Advanced Rendering Techniques
OpenGL(R) Reference Manual: The Official Reference Document to OpenGL, Version 1.4 (4th Edition)
OpenCL Programming by Example
OpenGL Programming Guide: The Official Guide to Learning OpenGL, Versions 3.0 and 3.1