"Practical Electronics For Railway Modellers" - Roger Amos, hardback,157 pages.
1982 edition ... due to age it is a *little obsolete* in places but nevertheless an interesting little book with plenty of stuff that remains useful. Good book for a beginner.
When I say "free" ... would expect that p and p *at cost* would be reimbursed by return.
If no takers by mid-week it gets ebayed, email instructions in the sig.