I can just about recognise one end of a soldering iron from another, but my 12 year old son is pretty good at computing and electronics (and no, this isn't just parental pride - he can design and build reasonably sophisticated electronic circuits). Also, I have a computer technician at work who can help me out if we get really stuck. I want to encourage him (my son, not the technician) to have a go at building his next computer from scratch (well, using ready-made components, anyway). Can anyone recommend some reasonable books, please? For those who don't know me, I live in the UK, but a lot of the standard US series of textbooks are sold over here as well (and yes, I know about allowing for the different voltage!).