diff --git a/src/tweedle.rs b/src/tweedle.rs
index f8f9be9..417071e 100644
--- a/src/tweedle.rs
+++ b/src/tweedle.rs
@@ -6,5 +6,8 @@ mod macros;
 mod curves;
 mod fields;
 
+pub mod dee;
+pub mod dum;
+
 pub use curves::*;
 pub use fields::*;
diff --git a/src/tweedle/dee.rs b/src/tweedle/dee.rs
new file mode 100644
index 0000000..a900ada
--- /dev/null
+++ b/src/tweedle/dee.rs
@@ -0,0 +1,13 @@
+//! The Tweedledee elliptic curve group.
+
+/// A Tweedledee point in the projective coordinate space.
+pub type Point = super::Eq;
+
+/// A Tweedledee point in the affine coordinate space (or the point at infinity).
+pub type Affine = super::EqAffine;
+
+/// The base field of the Tweedledee group.
+pub type Base = super::Fq;
+
+/// The scalar field of the Tweedledee group.
+pub type Scalar = super::Fp;
diff --git a/src/tweedle/dum.rs b/src/tweedle/dum.rs
new file mode 100644
index 0000000..9f9b1b2
--- /dev/null
+++ b/src/tweedle/dum.rs
@@ -0,0 +1,13 @@
+//! The Tweedledum elliptic curve group.
+
+/// A Tweedledum point in the projective coordinate space.
+pub type Point = super::Ep;
+
+/// A Tweedledum point in the affine coordinate space (or the point at infinity).
+pub type Affine = super::EpAffine;
+
+/// The base field of the Tweedledum group.
+pub type Base = super::Fp;
+
+/// The scalar field of the Tweedledum group.
+pub type Scalar = super::Fq;