Updates October 14, 2018 Added Pics Andrew Hewson About Pictures Roles Name : Andrew Hewson Book Role 20 Best Programs for the ZX Spectrum Author 20 Mejores Programas para el ZX Spectrum, Los Author 20 Melhores Programas para o ZX Spectrum, Os Author 40 Best Machine Code Routines for the ZX Spectrum Author Maschinencode-Routinen fur den ZX Spectrum Author 40 Mejores Subrutinas en Codigo Maquina para el Spectrum, Las Author ZX Spectrum Machinetaalroutines Author As Melhores Rotinas para a ZX Spectrum Author Hints and Tips for the ZX81 Author 40 Best Machine Code Routines For The ZX Spectrum [1] Author Hints and Tips For Videogame Pioneers Author Change Request You can request changes or additions here. You can upload files. All change requests are actioned as quickly as possible and you will be informed of the result. Details Files Your Name * Email * Details Your browser doesn't have Flash, Silverlight or HTML5 support. Submit Thank you for your change request. We will respond as soon as possible.