We are hoping to get a puppy soon, he is 4 weeks old at the moment, from a KC registered breeder. We are going to meet him soon, v.excited! 
Can I ask some silly questions though?
1 Am I right in thinking he won't have had all his injections if we get him at 9 wks old?
2 I think I read somewhere that the final injections are at 12 weeks. Does that mean I can't take him out until he's 12 weeks?
3 At what age should I start training classes?
4 I am a SAHM so I'll be able to be with him pretty much all the time. The only problem is that my DS has a docs appointment every Friday, which means I'll be out of the house between about 9.30am and 1pm. I'm a bit worried that it's too long to leave a puppy but I can't take him with me. Is it too long - should I arrange a dog sitter? Any advice appreciated!!
5 Can anyone recommend a really good puppy book?
I've been lurking about The Doghouse for ages and I've found all the puppy threads really helpful so I hope I know what I'm letting myself in for (although the DCs and DH will help of course I know it'll be me that does most of the walking and the poop-scooping!!) Thanks for all your help 