Thanks for the comment . Actually there is a 2nd edition.http://www.amazon.co.uk/The-Definitive-Guide-ARM-Cortex-M3/dp/185617963X/ (paperback)http://www.amazon.co.uk/The-Definitive-Guide-Cortex-M3-ebook/dp/B003XT5ST8/ (kindle)and also a Cortex-M0 bookhttp://www.amazon.co.uk/The-Definitive-Guide-ARM-Cortex-M0/dp/0123854776/ (paperback)http://www.amazon.co.uk/The-Definitive-Guide-Cortex-ebook/dp/B005DXMVLA/ (kindle)regards,Joseph