This document is a knowledge summary of my one and a half years of study and practical research into the operation, testing and repair of valve amplifiers.

This is a long, personal account of a first week's Ayahuasca experience, with many facets to it, including personal, psychology based background perspectives, which I hope helps others to understand that...

Why an introductory Linux admin, command line-oriented eBook in 2023 when GUIs are so powerful now and Windows is still the dominant desktop OS?Well, lots of reasons, but for anyone looking for a career...

This CEFR A1 Level English to Chinese Words List eBook contains just those words that are included at level A1, with links to bespoke, US/UK accented sound files for you to practice your pronounciation.There...

This CEFR A1 Level English to Thai Words List eBook contains just those words that are included at level A1, with links to bespoke, US/UK accented sound files for you to practice your pronounciation.There...