The Roly Poly Little Puppy, Fox in Sox by Suess, and Wacky Wednesday.

My girls love the Fancy Nancy Books and so do I.

My son also 7 and my daughter and my daughter is 3 and they both get the giggles when I read Too Many Daves by Dr. Suess. Chicka Chicka Boom Boom is also a good one that they both like.

My 7 year old loves the A to Z mysteries series, Encyclopedia Brown series, Moongobble & Me series, The Spiderwick Chronicles, Kingdom Keepers, and Kingdom Keepers 2.

My 3 (almost 4) year old loves Dr. Suess and anything disney princess (there is a lot of disney princess for all reading levels at Barnes & Nobel or Borders).

Brown Bear, Brown Bear (& other Eric Carlyle) are always a favorite at any age. If you can still find it Greg & Steve have a CD called Playing Favorites that put Brown Bear, Brown Bear to a song. Also Peter, Paul & Mary's CD, "Peter, Paul, & Mommy" has the Boa Constrictor poem (mentioned below) as a song which is one of my kids' favorites, they ask for it all the time, even my 9 year old still loves it.

My 7 year old is addicted to the Magic Tree House series of books and Junie B. Jones. My 4 year old loves Froggy Gets Dressed there is a whole series of Froggy books and in preschool they read Chicka, Chicka, Boom, Boom good book for learning letters, and Click, Clack, Moo:Cows That Type is great for all ages.

My son is 4 and my daughter is 2, they both crack up at the Skippy Jon Jones books, especially Skippy Jon Jones and the Big Bones, which comes with a CD of the story read by the author, Judy Shachner. Pinkalicious is a fun one for the girls, too. And Ladybug Girl. My son really likes the Virginia Lee Burton books, too, but that may be a little young for your son. My daughter really likes them, though and the illustrations are beautiful. The kissing hand has become a favorite now that school has started.

Danny the dinosaur, brown bear

for the holiday season: the polar express, bialowski's christmas, and of course the classic - the night before christmas

poems by shel silverstein is a good way to add diversity to the types of things your kids are reading

my niece cant stop reading the Nancy Drew series

our loves and very highly recommended for all ages which our children have loved forever (we have four ages 3, 5, 6 and 8).........."micawber" , "oh my baby little one", and for working moms...."when mama comes home tonight" and "splat the cat " has the funniest and cutest illustrations ever." love, love , love all 4 of these!!!!!!!!

I've got two that should work well for both of them. My favorite picture book ever is called "Andrey Henry's Meadow" by Doris Burn. My three year old daughter loves it and I remember reading it with my dad even as a third grader. It's the story of a boy who loves to build things and drives his family crazy with his inventions. He leaves home and builds his own house in a beautiful meadow, other misunderstood children join him and he builds each of them a home that fits their peculiar needs. Of course there is a reunion and a happy ending.

I am also a children's author and my book "Our Walk in the Woods" is recommended for kids 3-9 years old. It is the story of a girl and her dog and their Saturday morning walk. The story is told from each of their very different perspectives. You can see pictures from the book and hear an audio version at ourwalkinthewoods.com.

I have an almost 7 year old daughter, and she really enjoys Harry Potter. We've only read the first one to her, but she loved it.

And for your 3 year old...there is an amazing pop-up version of Alice and Wonderland that is just beautiful.

Old Classics: Green eggs and Ham, Where the wild things are, goodnight moon.

I have a 3 year old daughter and a one year old daughter. They love the book "Barnyard Dance" by Sandra Boynton. It is vedry fun book that we love to play out the words. It is great entertainment.

We are a book crazy family, for younger book worms (like your 3yr old daughter) I love:Dinosaur Roar (it comes in both board book and hardback/paperback formats)

http://www.amazon.com/Dinosaur-Roar-Picture-Puffins-Stickland/dp/0140568085/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1214779626&sr=8-1

Doggies (Sandra Boynton)

http://www.amazon.com/Doggies-Boynton-Board-Books-Schuster/dp/0671493183/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1214779809&sr=1-1

B is for Books (Sesame Street - Elmo)

http://www.amazon.com/Books-Step-Reading-Early-paper/dp/0679864466/ref=sr_1_2?ie=UTF8&s=books&qid=1214779920&;sr=1-2

Gallop is a relatively new book but it's become a quick hit with every child I've seen pick it up (heck adults love it too)

http://www.amazon.com/Gallop-Scanimation-Rufus-Butler-Seder/dp/0761147632/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1214780036&sr=1-1

the Skippyjon Jones books are phenomenal

http://judithbyronschachner.com/skippyjon_jones.html

Wildest Brother by Cornelia Funke is cute and she has several others that have brilliantly written heroines

http://www.amazon.com/Wildest-Brother-Cornelia-Funke/dp/0439828627/ref=sr_1_22?ie=UTF8&;s=books&qid=1214780575&sr=1-22

and for your son...the Cpt. Underpants series are a little gross at times but such fun for the age group.

http://www.scholastic.com/captainunderpants/

also by the same author (Dav Pilkey) the Ricky Ricotta series is great:

http://www.scholastic.com/titles/rickyricotta/

I enjoy Bruce Coville's work and for this age there are a number of great books... one series; Moongobble and Me is fun 3-book set that has a lot of adventure and magic packed into a neat little package.

http://www.brucecoville.com/books.asp?gid=13

Cornelia Funke also has a trilogy (Inkheart, Inkspell, Inkdeath) that he might enjoy... they are longer books and are recommended for ages 9-12, but it would just depend on your son kwim?

http://www.amazon.com/Inkheart-Cornelia-Funke/dp/0439709105/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1214780687&sr=1-1

Also by Ms. Funke is a cute Christmas story; When Santa Fell To Earth

http://www.amazon.com/When-Santa-Earth-Cornelia-Funke/dp/043978204X/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1214780784&sr=1-1

and one last suggestion ... The Spiderwick Chronicles are GREAT!

http://www.amazon.com/Spiderwick-Chronicles-Boxed-Set-Lucindas/dp/0689040342/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1214780829&sr=1-1

*edited

Shel Silverstein was my favorite author growing up. "Where the sidewalk ends" is awesome. It's full of short stories and poems like this one:

Oh, I'm being eaten

By a boa constrictor,

A boa constrictor,

A boa constrictor,

I'm being eaten by a boa constrictor,

And I don't like it--one bit.

Well,what do you know?It's nibblin' my toe.

Oh, gee,It's up to my knee.

Oh my,It's up to my thigh.

Oh, fiddle,It's up to my middle.

Oh, heck,It's up to my neck.

Oh, dread,It's upmmmmmmmmmmffffffffff . . .

My newly 8 yr old daughter LOVES the Magic Treehouse series. And my 6yr old son loves to listen to it. we take turns reading aloud and discussing the events. They learn about history and important people in the process.

Anything by Judy Blume