I've been doing this with DS as we live in Germany :)
First I think if you're going with the phonics method (which I would recommend because it helps them with the very irregular spelling of English too) you need to get familiar with the method itself. I used this book: www.amazon.co.uk/Parents-Survival-Guide-Phonics-Spelling/dp/1408140748/ref=sr_1_1?ie=UTF8&qid=1401190660&sr=8-1&keywords=guide+to+phonics+and+spelling
There might be other, better books but this one was enough to help me understand. It's very good because it goes through the pre-phonics steps, about distinguishing between different shapes and sounds which are similar.
Then I bought a few of the Biff, Chip and Kipper phonics books - be careful because there are older Oxford Reading Tree B,C,K books which aren't phonics based. Actually, I didn't like their phonics books in the main, but the four books under stage 1 phonics are excellent, it progresses through the alphabet sounds, getting DC to find things in the picture which begin with /a/ or have the sound /i/ in the middle, etc. The second book is a little bit more in depth again with the basic sounds, book 3 is some simple words and then book 4 lets them match very simple sentences to a picture. All of these books have little puzzles at the end, a maze or a spot the difference - which help DC practice recognition skills and pencil control.
The books which I've found fantastic for reading practice and introducing new phonemes are the Songbirds series by Julia Donaldson. You can buy collections for each stage on amazon, for us it's cheaper to buy them on amazon.de than ship them but it depends - you can save if you buy them all at once but it's a big outlay. If you happen to be visiting the UK that would be the best thing to do. I like these because they progress in a linear fashion, with the first stories being entirely decodable. At the start of every story there is a little panel which shows you which sounds this story practices and also the "tricky words" contained in these stories. As I've learned from these boards, "tricky words" aren't words they necessarily need to learn by sight but are often words which can be decoded later, so I tend to let DS have a go but say "Don't worry, this one's tricky, you'll learn it later" and read it for him if he can't manage. But this way he's picked up some of the smaller, high frequency words like one, two, the, to, of, come, some, etc. The front panel also has some ideas for questions and discussion topics and they are better questions for checking understanding, IMO, than the biff, chip and kipper ones which tend to ask random questions like "Who did Biff kick the ball to on page 4?" whereas the Songbirds asks things like "Why do you think..." and "How might X have felt when..." and if they understood what they were reading, they'll be able to answer rather than just remembering single words from the text.
Writing is harder to practice, I find the reading easy as it's pretty organic, he asks to read and if he's finding it hard or not interested we stop for a bit but after a while he will pick it up again. I find with writing he wants to do more than he can so I'm struggling to find activities to practice which are appropriate to his level. I bought a couple of "Collins Easy Learning" books, the Writing 1 and 2 (although they were very basic - the English ones are better) to help him practice but he's not so interested in sticking at it, I think if that's an approach I want to do we'll need to set a time of the week for writing practice. But other things, we write little notes to each other, I let him practice typing, other stuff like that.