The 'ministry' book/leaflets are good - and free to download.
I would say that Yates' Study Notes are not suitable for the Basic - far too in depth.
Clive De Bruyn's book is good.
I can't comment on the Haynes manual myself although I have heard good things about it. UNLESS it goes on about cracking open the roof and putting matchsticks under the crownboard!
Ted Hoopers Guide is good - I have the original version and not the re-written one. Probably not a first book,, maybe the second!
Winston's 'Biology' is a cracking read. Possibly too advanced for the basic and a few years' old now.
Another old book is The Morse and Hooper book which has been out of print for ages. You might see it for £100 or so. Absolutely stuffed with information.
Don't forget the Mid Bucks notes - designed for the Modules, they are a good summary and certainly good if someone wants to progress beyond the 'Basic'.