This guide is certainly out of the ordinary. Rather than endless lessons covering every instruction available in the Z80 language, Andree Chea keeps everything refreshingly simple. Of course, if you're serious in your intent to learn Z80 assembly, you will need other resources that describe in detail how to program in assembly (link to such guides and tutorials are included in this package). However, especially with its focus on the mindset needed for such programming, this guide is invaluable as an introduction to the great wide world of Z80 assembly.