Here is a chart of the types of chords you will most commonly find in sheet music. The shapes given are all based around the first few frets. The most useful chord shapes are outlined with a box. The other shapes are given for your reference only but in most cases would be better played holding a bar chord shape.
Bar chords, although a little difficult at first are ultimately easier and more convenient to play than most of the non-outlined shapes. All good guitarists play bar chords. For more information on bar chords see Progressive Bar Chords. The boxed shapes are generally easier to play and should be memorized. These open chords sound particularly good on acoustic guitars and for fingerpicking.
A

A#/Bb

B

C

C#/Db

D

D#/Eb

E

F

F#/Gb

G

G#/Ab

Am

A#/Bbm

Bm

Cm

C#/Dbm

Dm

D#/Ebm

Em

Fm

F#/Gbm

Gm

G#/Abm

A7

A#/Bb7

B7

C7

C#/Db7

D7

D#/Eb7

E7

F7

F#/Gb7

G7

G#/Ab7

Am7

Bm7

Cm7

Dm7

Em7

Fm7

Gm7

Amaj7

Bmaj7

Cmaj7

Dmaj7

Emaj7

Fmaj7

Gmaj7

A6

B6

C6

D6

E6

F6

G6

Asus

Bsus

Csus

Dsus

Esus

Fsus

Gsus

A9

B9

C9

D9

E9

F9

G9

A+

B+

C+

D+

E+

F+

G+

AB

BB

CB

DB

EB

FB

GB
