I homeschool. My favorite go to curricula are as follows:
Hooked on Phonics - This is the most cost effective and simple to use program. Everything you need comes in one box and books and materials are colorful and kid friendly. There is no preparation required on the part of the parent, just open the box and begin! It teaches incrementally from Pre-K to 3rd grade. You can find mini-versions at Target or see: http://www.hookedonphonics.com/
How to Teach Your Child to Read in 100 Easy Lessons - Very straightforward lessons. Downside is that can be very visually unappealing to some children as it is all black and white print. But it gets the job done fast and simple and it's all in one paperback book. Easy and cheap. Trusted, tried and true...well loved in homeschooling community.
See: http://www.amazon.com/Teach-Your-Child-Read-Lessons/dp/06...
Explode the Code - This is used in both schools and among homeschoolers. These workbooks are very straightfoward, but the program is designed to roll out over a couple of years. You will want to supplement with reading books of your own choosing. Because there are many levels, it can get expensive.
See: http://www.christianbook.com/Christian/Books/easy_find/13...
Spell to Read and Write - Is very time intensive on the part of both the parent and student. It is an excellent and very thorough curriculum that combines handwriting, spelling, and phonics in one. It is multi-sensory and by the end of the program your child will have a very solid foundation and understanding of the english language and it's many complicated phonics rules. This approach is based on two other similar and equally popular approaches called the Orton-Guillingham Method and the Writing Road to Reading (also called the Spalding Method) which are also popular go-to for kids who do not learn reading and writing intuitively.
See: http://www.swrtraining.com/id23.html
http://www.amazon.com/Writing-Road-Reading-6th-Rev/dp/006...
http://www.gophonics.com/orton_gillingham.html
Bob Books- You can find this incremental series (pre-reading and up) at most bookstores like Barnes and Noble. Nice, cute, simple readers for young readers.
See:http://bobbooks.com/