diff --git a/include/epanet2.bas b/include/epanet2.bas
index 32ab028..0522ecf 100644
--- a/include/epanet2.bas
+++ b/include/epanet2.bas
@@ -220,7 +220,7 @@ Public Const EN_INITFLOW = 10     ' Re-initialize flow flag
 Public Const EN_SAVE_AND_INIT = 11
 
 Public Const EN_CONST_HP = 0      ' Constant horsepower pump curve
-Public Const EN_POWER_FUNC = 1    ' Power function pump cuve
+Public Const EN_POWER_FUNC = 1    ' Power function pump curve
 Public Const EN_CUSTOM = 2        ' User-defined custom pump curve
 Public Const EN_NOCURVE = 3       ' No pump curve
 
diff --git a/include/epanet2.h b/include/epanet2.h
index 1496e9a..042d6c6 100644
--- a/include/epanet2.h
+++ b/include/epanet2.h
@@ -18,7 +18,7 @@ set of thread safe API functions that allows one to run concurrent analyses on
 multiple EPANET projects can be found in the epanet2_2.h header file. The two
 APIs share the same function names and arguments with the difference being that
 the thread safe functions use the prefix "EN_" and include an extra argument that
-represents the EPANET project being analyzed. To avoid unneccesary repetition,
+represents the EPANET project being analyzed. To avoid unnecessary repetition,
 only the thread safe API functions have been documented. To see a description of
 a legacy style API function declared here please refer to its complementary named
 function in epanet2_2.h.
diff --git a/include/epanet2_2.h b/include/epanet2_2.h
index b527b98..5139cc4 100644
--- a/include/epanet2_2.h
+++ b/include/epanet2_2.h
@@ -754,7 +754,7 @@ typedef struct Project *EN_Project;
   int  DLLEXPORT EN_getoption(EN_Project ph, int option, double *out_value);
 
   /**
-  @brief Sets the value for an anlysis option.
+  @brief Sets the value for an analysis option.
   @param ph an EPANET project handle.
   @param option a type of analysis option (see @ref EN_Option).
   @param value the new value assigned to the option.
diff --git a/include/epanet2_enums.h b/include/epanet2_enums.h
index a48171f..7d6db75 100644
--- a/include/epanet2_enums.h
+++ b/include/epanet2_enums.h
@@ -447,7 +447,7 @@ should be taken if the node or link being deleted appears in any simple or rule-
 controls or if a deleted node has any links connected to it.
 */
 typedef enum {
-  EN_UNCONDITIONAL = 0, //!< Delete all controls and connecing links
+  EN_UNCONDITIONAL = 0, //!< Delete all controls and connecting links
   EN_CONDITIONAL   = 1  //!< Cancel object deletion if it appears in controls or has connecting links
 } EN_ActionCodeType;