diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Animation.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Animation.java
index 5ff6de7c2..c5ca2a35d 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Animation.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Animation.java
@@ -1702,7 +1702,7 @@ public class Animation {
 		}
 	}
 
-	/** Changes {@link Skeleton#drawOrder}. */
+	/** Changes the {@link Skeleton#getDrawOrder()}. */
 	static public class DrawOrderTimeline extends Timeline {
 		static final long propertyID = Property.drawOrder.ordinal();
 		static private final long[] propertyIds = {propertyID};
@@ -1752,7 +1752,7 @@ public class Animation {
 		}
 	}
 
-	/** Changes a subset of {@link Skeleton#drawOrder}. */
+	/** Changes a subset of the {@link Skeleton#getDrawOrder() draw order}. */
 	static public class DrawOrderFolderTimeline extends Timeline {
 		private final int[] slots;
 		private final boolean[] inFolder;
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
index f8ee64e97..8d9ce7d60 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
@@ -37,9 +37,9 @@ import com.badlogic.gdx.utils.Null;
  * <ul>
  * <li>{@link #data}: The setup pose.
  * <li>{@link #pose}: The unconstrained local pose. Set by animations and application code.
- * <li>{@link #appliedPose}: The constrained local pose. The {@link #pose} with modifications by constraints.
- * <li>World transform (on the applied pose): the {@link #appliedPose} combined with the parent world transform. Computed by
- * {@link Skeleton#updateWorldTransform(Physics)} and {@link BonePose#updateWorldTransform(Skeleton)}.
+ * <li>{@link #appliedPose}: The local pose to use for rendering. Possibly modified by constraints.
+ * <li>World transform: the local pose combined with the parent world transform. Computed on a pose by
+ * {@link BonePose#updateWorldTransform(Skeleton)} and {@link Skeleton#updateWorldTransform(Physics)}.
  * </ul>
  */
 public class Bone extends PosedActive<BoneData, BonePose> {
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraintPose.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraintPose.java
index f1984b222..d2ec086ea 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraintPose.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/IkConstraintPose.java
@@ -29,7 +29,7 @@
 
 package com.esotericsoftware.spine;
 
-/** Stores the current pose for an IK constraint. */
+/** Stores a pose for an IK constraint. */
 public class IkConstraintPose implements Pose<IkConstraintPose> {
 	int bendDirection;
 	boolean compress, stretch;
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Physics.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Physics.java
index 7759e888d..b1955cddf 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Physics.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Physics.java
@@ -6,7 +6,7 @@ public enum Physics {
 	/** Physics are not updated or applied. */
 	none,
 
-	/** Physics are reset to the current pose. */
+	/** Physics are {@link PhysicsConstraint#reset() reset}. */
 	reset,
 
 	/** Physics are updated and the pose from physics is applied. */
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java
index ec64f2163..38b732c48 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Posed.java
@@ -5,7 +5,7 @@ package com.esotericsoftware.spine;
  * <ul>
  * <li>{@link #data}: The setup pose.
  * <li>{@link #pose}: The unconstrained pose. Set by animations and application code.
- * <li>{@link #appliedPose}: The constrained pose. The {@link #pose} with modifications by constraints.
+ * <li>{@link #appliedPose}: The pose to use for rendering. Possibly modified by constraints.
  * </ul>
  */
 abstract public class Posed< //
@@ -13,8 +13,7 @@ abstract public class Posed< //
 	P extends Pose> {
 
 	final D data;
-	final P pose;
-	final P constrainedPose;
+	final P pose, constrainedPose;
 	P appliedPose;
 
 	protected Posed (D data, P pose, P constrainedPose) {
@@ -40,19 +39,19 @@ abstract public class Posed< //
 		return pose;
 	}
 
-	/** If no constraints modify this object, the applied pose is the same as the {@link #pose}. Otherwise it is a copy of the
-	 * {@link #pose} modified by constraints. */
+	/** The pose to use for rendering. If no constraints modify this pose, this is the same as {@link #pose}. Otherwise it is a
+	 * copy of {@link #pose} modified by constraints. */
 	public P getAppliedPose () {
 		return appliedPose;
 	}
 
 	/** Sets the applied pose to the unconstrained pose, for when no constraints will modify the pose. */
-	void pose () { // Port: usePose
+	void pose () {
 		appliedPose = pose;
 	}
 
 	/** Sets the applied pose to the constrained pose, in anticipation of the applied pose being modified by constraints. */
-	void constrained () { // Port: useConstrained
+	void constrained () {
 		appliedPose = constrainedPose;
 	}
 
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java
index 0f2af71a9..5c3d7acff 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skeleton.java
@@ -43,7 +43,10 @@ import com.esotericsoftware.spine.attachments.MeshAttachment;
 import com.esotericsoftware.spine.attachments.RegionAttachment;
 import com.esotericsoftware.spine.utils.SkeletonClipping;
 
-/** Stores the current pose for a skeleton.
+/** Stores bones and slots to be posed by animations and application code. Multiple skeleton instances can share the same
+ * {@link SkeletonData}, including animations, attachments, and skins.
+ * <p>
+ * After posing, call {@link #updateWorldTransform(Physics)} to apply constraints and compute world transforms for rendering.
  * <p>
  * See <a href="https://esotericsoftware.com/spine-runtime-architecture#Instance-objects">Instance objects</a> in the Spine
  * Runtimes Guide. */
@@ -463,7 +466,7 @@ public class Skeleton {
 		return null;
 	}
 
-	/** Returns the axis aligned bounding box (AABB) of the region and mesh attachments for the current pose.
+	/** Returns the axis aligned bounding box (AABB) of the region and mesh attachments for the applied pose.
 	 * @param offset An output value, the distance from the skeleton origin to the bottom left corner of the AABB.
 	 * @param size An output value, the width and height of the AABB.
 	 * @param temp Working memory to temporarily store attachments' computed world vertices. */
@@ -471,7 +474,7 @@ public class Skeleton {
 		getBounds(offset, size, temp, null);
 	}
 
-	/** Returns the axis aligned bounding box (AABB) of the region and mesh attachments for the current pose. Optionally applies
+	/** Returns the axis aligned bounding box (AABB) of the region and mesh attachments for the applied pose. Optionally applies
 	 * clipping.
 	 * @param offset An output value, the distance from the skeleton origin to the bottom left corner of the AABB.
 	 * @param size An output value, the width and height of the AABB.
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skin.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skin.java
index 45ec90bad..f4b203a4c 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skin.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Skin.java
@@ -37,7 +37,7 @@ import com.badlogic.gdx.utils.OrderedSet;
 import com.esotericsoftware.spine.attachments.Attachment;
 import com.esotericsoftware.spine.attachments.MeshAttachment;
 
-/** Stores attachments by slot index and placeholder name.
+/** Stores attachments by slot index and placeholder name. Multiple {@link Skeleton} instances can use the same skins.
  * <p>
  * See {@link SkeletonData#defaultSkin}, {@link Skeleton#skin}, and
  * <a href="https://esotericsoftware.com/spine-runtime-skins">Runtime skins</a> in the Spine Runtimes Guide. */
diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/attachments/Attachment.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/attachments/Attachment.java
index 4f0f464a4..84c06a571 100644
--- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/attachments/Attachment.java
+++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/attachments/Attachment.java
@@ -31,7 +31,9 @@ package com.esotericsoftware.spine.attachments;
 
 import com.badlogic.gdx.utils.Null;
 
-/** The base class for all attachments. */
+import com.esotericsoftware.spine.Skeleton;
+
+/** The base class for all attachments. Multiple {@link Skeleton} instances, slots, or skins can use the same attachments. */
 abstract public class Attachment {
 	final String name;
 	@Null Attachment timelineAttachment;