Since there are so many people looking for books to read, I figured I'd just make a topic that anyone can look at. The more information you put the better. Here are some things you should have:
1. Title of book (or series if applicable.)
2. Number of books in series (if applicable) Please specify if there are still books coming out. (ongoing series)
3. Author(s)
4. Estimated reading level

Examples:
The Lightning Thief, Percy Jackson and the Olympians (series, 5) - Rick Riordan (6th-8th grade reading level)
1. The Lightning Thief
2. 5
3. Rick Riordan
4. 6-8

Books recommended:
2nd - 7th grade level: Elementary school
A Wrinkle in Time - Madeleine L'Engle (3-9)
Ella Enchanted - Gail Carson Levine (3-5)
Flipped - Wendelin Van Draanen (4-7)
A Whole Nother Story by Dr. Cuthbert Soup (3-7)
A Wrinkle in Time (series; 4) by Madeleine L'Engle (4-7)
Alice's Adventures in Wonderland - Lewis Carroll (3-5)
Bloomability by Sharon Creech (4-7)
Bridge to Terabithia - Katherine Paterson and Donna Diamond (4-7)

5th - 8th grade level: Middle school
Pendragon (series; 10) - D. J. MacHale (6-8)
Wolf Brother (series; 6) - Michelle Paver (6-8)
Keys to the Kingdom (series; 7) - Garth Nix (5-8)
Septimus Heap (series; 6)- Angie Sage (6-8)
Pillage (ongoing series) - Obert Skye (5-8)
Leven Thumps (series; 5) - Obert Skye (6-8)
Charlotte's Web - E. B. White (6-8)
Chronicles of Narnia (series; 7) - C. S. Lewis (6-8)
The fire Within (series; 3?) - Chris D'Lancey (5-8)
39 Clues (series; ongoing?) - Multiple authors (3-8)
Animorphs (series; 91+) - Katherine A. Applegate (4-8)
Anne of Green Gables (series; 3) - Lucy Maud Montgomery (6-8)
Artemis Fowl (series; 10+) - Eoin Colfer (6-8)
Bartimaeus Trilogy (series; 3) - Jonathan Stroud (6-8)
Brian's Saga (series; 2?) - Gary Paulsen (6-8)

8th - 12th grade level: High school
Midnighters (series; 3) - Scott Westerfeld (9-12)
Uglies (series; 3) - Scott Westerfeld (9-12)
Fahrenheit 451 - Ray Bradbury (9-12)
Agent Six of Hearts (series; 4?) - Jack Heath (6-12)
All the Pretty Horses - Cormac McCarthy (9-12)
Blue Bloods - Melissa de La Cruz (9-12)

Adult level books: Collage and beyond
None... so far!

Authors recommended for multiple series:
Roald Daul
Andrew Clements
Scott Westerfeld
Rick Riordan
Scott Westerfeld
Obert Skye

More books I have yet to sort out (might be misspelled and/or lacking authors. I got these from other topics)
A Return to Christmas by Chris Heimerdinger
7th Son by J. C. Hutchins
Adventurer's Wanted series- M.L. Forman
Alex Rider - Anthony Horowitz
An Old Magic by Ruth M. Arthur
Avalon web of Magic series - Rachel Roberts

Castaways in Lilliput b Henry Winterfeld
Charlie Bone
cirque du freak
Crypdid Hunters
Damia's Children by Anne McCaffrey
Daniel X-James Patterson
Dead Is
Deep and Dark and Dangerous
Demon's Lexicon
Demonata
Devil's Kiss
Diary of a Wimpy kid (series)
Dragon Rider by Cornelia Funke
Dragon Riders of Pern by Anne McCaffrey (a HUGE series)
Ella Enchanted by Gail Carson Levine
Elsewhere
English Roses
Fablehaven by Brandon Mull
Falling Leaves by Adeline Yen Mah
Flipped by Wendelin van Draanen
Gatekeepers series-Anthony Horowitz
Golden Mountain Chronicles-Laurence Yep
GONE series
Gsllagher Girl Series By Ally Carter
Harry Potter
Heroes of the Fallen by David J. West (my hero)
Holes by Louis Sachar
Hornet Flight by Ken Follett
Horrible Harry
House of the Scorpions
Inheritance Cycle (Eragon)- Christopher Paolini
Inkworld Trilogy- Cornelia Funke
Jackdaws by Ken Follett
Judy Moody series
Junie B. Jones series
Keys to the Kingdom by Garth Nix (a series)
Kiki Strike
Kim by Rudyard Kipling
King Arthur and his Knights of the Round Table by Roger Lancelyn Green
Le Morte D'Arthur by Sir Thomas Malory (in English)
Leven Thumps by Obert Skye
Leviathan- Scott Westerfield
Little Women by Louisa May Alcott
LotR
Lyon's Pride by Anne McCaffrey
Macbeth by William Shakespeare
Marry Poppins by P.L. Travers
Maximum Ride Series by James Patterson
Mokee Joe
Morganville Vampire Series
Mortal Instruments -Cassandra Clare
My Own Worst Enemy by Carol Sonenklar
My Side of the Mountain by Jean Craighead George
Mystery of the Black Diamonds by Phyllis A. Whitney
Night Over Water by Ken Follett
Nobody's Princess
Old Tangle Eye by Ralph C. Johnston
Out of Darkness by Keith Terry
Outcast by Christopher Golden & Thomas E. Sniegoski
Owls of Ga'Hoole
Pandro series
Pendragon by D.J. MacHale
Peter and the Starcatchers by Dave Barry & Ridley Pearson
Pillage by Obert Skye
PJO series
Princess Academy by Shannon Hale
Ranger's Apprentice series-John Flanagan
Robinson Crusoe by Daniel Defoe
Septimus Heap by Angie Sage
Series of Unfortunate Events by Lemony Snicket
Serpent Tide by K. L. Fogg
Shiver and Linger
Sisters Grimm series
Skulduggery Pleasant
Smile
Spiderwick Chronicles
Stargirl by Jerry Spinelli
Strange Angels
Sweep series
Tennis Shoes Among the Nephites by Chris Heimerdinger
The Alliance by Gerald N. Lund
The Arthurian Omen
The Arthurian Saga by Mary Stewart
The Bar Code Tattoo by Suzanne Weyn
The Bible
The Blue Sword by Robin McKinley
The book of a thousandth truths
The Buffalo Knife by William O. Steele
The Candy Shop War.
The Charlie Bone series
The Count of Monte Cristo by Alexandre Dumas
The Enchanted Schoolhouse by Ruth Sawyer
The Enormous Egg by Oliver Butterworth
The Fayz Series-Michael Grant
The Forgotten Door by Alexander Key
The Foxman by Gary Paulsen
The frog Princess by E.D. Baker
The Giver by Lois Lowry
The Graceling
The H.O.N series
The Hunger Games (series of 3)
The Invention of Hugo Calbreit
The Kane Chronicles: The Red Pyramid
The King in the Window by Adam Gopnik
The Long Christmas by Ruth Sawyer
The Lost Symbol by Dan Brown
The Merry Adventures of Robin Hood by Howard Pyle
The mirlen compricy
The Mortal Instruments by Cassandra Clare
The Outsiders
The Prince and the Pauper by Mark Twain
The ramona books
The Scarlet Pimpernel
The Screwtape Letters by C. S. Lewis
The Short Second Life of Bree Tanner
The Sight by David Clement-Davies
The Summoning
The Time Traveler's Wife by Audrey Niffenegger
The Walk by Richard Paul Evens
The Warriors Series
The westing game by ellen raskin
The Work and the Glory by Gerald N. Lund (a series)
Thirteen Reasons Why by Jay Asher
Treasure Island by Robert Louis Stevenson
Twilight Saga
Undead
Undercover girl series
Vampire Academy Series
Vampire diaries(not the new series, Vampire Diaries return)
Vladimir Tod
Voyage on the Great TItanic by Ellen Emerson White (American Girl)
Where the Red Fern Grows by Wilson Rawls
Wicked by Gregory Maguire
Witch and Wizard
Wolves of the Beyond
Worlds of the Crystal Moon by Phillip "Big Dog" E. Jones
Yearbook by Allyson Braithwaite Condie

If you have any more not on this list, please post here! If you found a book to read on here, also post! It would be absolutely wonderful if you can get me the information I explained above for the last list of books. Thanks! Also tell me if I repeated any books O.O

Dearest, holy shizzle...

Oh wow Charlie Bone would be like Middle School I think

You totally just listed all the books mentioned on this site, didn't you. lol
Actually, I was thinking of doing this myself!
I'll help some, but I don't know if I'm doing it right... I suggest copying my list into your original post so it's uniform and easier to understand.

7th Son by J. C. Hutchins (series, 3) - Adult
Alex Rider by Anthony Horowitz (series, #?) - elementary? (I've only read one, so help me out, guys)
Castaways in Lilliput by Henry Winterfeld - elementary
Dragon Riders of Pern by Anne and Todd McCaffrey (ongoing series) - high school
Flipped by Wendelin van Draanen - jr high
GONE series is the same as The Fayz Series by Michael Grant (ongoing series) - high school
Harry Potter by J. K. Rowling (series, 7) - all ages
Heroes of the Fallen by David J. West (ongoing series) - jr high
Holes by Louis Sachar - jr high
Hornet Flight by Ken Follett - adult
Inkworld Trilogy by Cornelia Funke (series, 3) - jr high
Jackdaws by Ken Follett - adult
Junie B. Jones series - elementary
Keys to the Kingdom by Garth Nix (series, 7) - jr high
Leven Thumps by Obert Skye (series, 5) - elementary
Mortal Instruments by Cassandra Clare (series, #?) - high school
My Own Worst Enemy by Carol Sonenklar - jr high
My Side of the Mountain by Jean Craighead George - jr high
Night Over Water by Ken Follett - adult
Outcast by Christopher Golden & Thomas E. Sniegoski (series, #?) - jr high
Pendragon by D. J. MacHale (series, 10) - 13+
Robinson Crusoe by Daniel Defoe - high school
A Series of Unfortunate Events by Lemony Snicket (series, 13) - jr high?
Serpent Tide by K. L. Fogg (series, 3?) - elementary
Tennis Shoes Among the Nephites by Chris Heimerdinger (ongoing series) - jr high? (I've only read the first one so far...)
The Alliance by Gerald N. Lund - high school
The Arthurian Omen - high school
The Arthurian Saga by Mary Stewart (series, 4) - high school
The Bar Code Tattoo by Suzanne Weyn (series, 2) - high school
The Candy Shop War by Brandon Mull (series?) - elementary
The Count of Monte Cristo by Alexandre Dumas - adult
The Enormous Egg by Oliver Butterworth - elementary
The Forgotten Door by Alexander Key - elementary
The Foxman by Gary Paulsen - elementary
The Giver by Lois Lowry - elementary
The King in the Window by Adam Gopnik - all ages
The Lost Symbol by Dan Brown - adult
The Merry Adventures of Robin Hood by Howard Pyle - all ages
The ramona books - elementary
The Scarlet Pimpernel - high school
The Screwtape Letters by C. S. Lewis - adult
The Time Traveler's Wife by Audrey Niffenegger - ADULT
Treasure Island by Robert Louis Stevenson - all ages
Twilight Saga by Stephany Meyers (sp?) (series, 4) - high school
Voyage on the Great TItanic by Ellen Emerson White (American Girl) - elementary
Wicked by Gregory Maguire - ADULT
Worlds of the Crystal Moon by Phillip "Big Dog" E. Jones (ongoing series) - 13+
Yearbook by Allyson Braithwaite Condie - high school

*you have Pillage on there twice
also, Septimus Heap
The Mortal Instruments by Cassandra Clare

**some of these might be ranked low... I was a college reading level by sixth grade

THERE ARE ALOT OF GOOD BOOKS IN THAT FIRST LIST! :DD

The 39 Clues are still going. CANT WAIT FOR TEH NEXT BOOK. ^_^

Lock and Key- Sarah Dessen. Middle school and higher.

Hatcet by Gary Pulson-Middle School

Kingdom Keepers~ Ridley Pearson.

39 Clues is still going? I thought the contest ended December 31st...

The Hunger Games
3
Suzane Collins
5.3


If I stay
1 (i know its not a series but its a good book!)
Gayle Forman
5.3

check out arbookfinder.com good source to find the book level and etc. this is what we have to do at my school!

Daniel X. It's awesome.

Theres like a million 39 clues contests and there will be like 39 books i think

uhh cirque du freak written by darren shan and has 12 books in the series
demontia written by darren shan and i think there is 7 or 8

Gallagher Girls
4 (so far)
Ally Carter
5-8th grade

The Fire Within.
Last Dragon Chronicles.
5 books(Ongoing series, next book scheduled to come out Jan. 2011).
Chris D'Lacey.
Reading Level: 4.1 Interest Level: Middle Grades+

I would suggest: (Thye Are All Like Young Adult Books...)

Fallen By Lauren Kate
Torment By Lauren Kate
Slayed By Amanda Moorne
The Vampire Diaries By L. J. Smith
Night World Volume One: Secret Vampire; Daughters Of Darkness; Spell Binder By L. J. Smith
Night World Volume Two: Dark Angel; The Chosen; Soulmate By L. J. Smith
Night World Volume Three: Huntress; Black Dawn; Witch Light By L. J. Smith
The Forbidden Game By L. J. Smith
The Saga Of Larten Crepsley By Darren Shan
The Chronicles Of Vladimir Tod: Eighth Grade Bites, Ninth Grade Kills, Tenth Grade Bleeds, Eleventh Grade Burns, Twelevth Grade Kills By Heather Brewer
Ash By Malinda Lo
Monster High By Lisa Harrison
The Gallagher Girls: I'g Tell You I Love You But Then I'd Have To Kill You; Cross My Heart And Hope To Spy Don't Judge A Girl By Her Cover; Only The Good Spy Young; By Ally Carter
Promotions By____
The Crystal Method By_____


That's It For Now At The Top Of My Head

How about the House of night series its sooo cool!

1. House of Night
2.Ongoing series with 7 books currantly
3. P.C Cast & Kristin Cast
4. Middle school- High School (I think I dunno.)

I would like to suggest:

Secret Circle series by LJ smith

Hush Hush and Crescendo by Becca Fitzpatrick

=Immortal series of Allison Noel=
Evermore
Blue Moon
Shadowland
*there's two new but I forgot the titles.