diff --git a/kiss_orm.go b/kiss_orm.go
index 4bb1b46..12e8bf3 100644
--- a/kiss_orm.go
+++ b/kiss_orm.go
@@ -46,6 +46,7 @@ func (c Client) Find(
 	return it.Error
 }
 
+// GetByID recovers a single entity from the database by the ID field.
 func (c Client) GetByID(
 	ctx context.Context,
 	item interface{},
diff --git a/slices/slices.go b/slices/slices.go
index 583384e..65399c1 100644
--- a/slices/slices.go
+++ b/slices/slices.go
@@ -2,10 +2,15 @@ package slices
 
 import "reflect"
 
+// ToInterfaceSlicer describes objects that
+// can be converted to a list of interfaces
 type ToInterfaceSlicer interface {
 	ToInterfaceSlice() []interface{}
 }
 
+// ToInterfaceSlice converts any slice into a slice of empty interfaces.
+//
+// If the input argument is not a slice it panics.
 func ToInterfaceSlice(slice interface{}) (resp []interface{}) {
 	if iSlicer, ok := slice.(ToInterfaceSlicer); ok {
 		return iSlicer.ToInterfaceSlice()