FPGAs 101 provides somebody who has very little exposure to FPGAs or VHDL, but some familiarity with digital design, with an introduction to FPGA design. The first chapter, ‘Getting Started,’ provides a beginner’s overview of programming, including how to name variables correctly, how to leave good comments, and how to find a good text editor. Later in the chapter, Smith begins an overview of the hardware description language, which extends until the end of Chapter 2. These chapters are written for those with no VHDL experience and are intended to provide a learn-by-example tutorial for implementing simple digital designs using VHDL, such as combinational logic circuits, flops, and counters