diff --git a/R/USairports.R b/R/USairports.R
index 2a41fdf..61ef760 100644
--- a/R/USairports.R
+++ b/R/USairports.R
@@ -30,7 +30,7 @@
 #'   \describe{
 #'     \item{Carrier}{Name of the airline.
 #'       The network includes both domestic and international carriers that performed at least one flight in December of 2010.}
-#'     \item{Departures}{The number of departures (for a given airline and aircraft type.}
+#'     \item{Departures}{The number of departures (for a given airline and aircraft type).}
 #'     \item{Seats}{The total number of seats available on the flights carried out by a given airline, using a given aircraft type.}
 #'     \item{Passengers}{The total number of passangers on the flights carried out by a given airline, using a given aircraft type.}
 #'     \item{Aircraft}{Type of the aircraft.}
diff --git a/R/yeast.R b/R/yeast.R
index 9583f49..4bad26f 100644
--- a/R/yeast.R
+++ b/R/yeast.R
@@ -39,7 +39,7 @@
 #'   }
 #'
 #'   Vertex attributes: \sQuote{name}, \sQuote{Description}, \sQuote{Class},
-#'   the last one contains the class of the protein, accoring to the classification above.
+#'   the last one contains the class of the protein, according to the classification above.
 #'
 #'   Note that some proteins in the network did not appear in the annotation files,
 #'   the \sQuote{Class} and \sQuote{Description} attributes are `NA` for these.
diff --git a/man/USairports.Rd b/man/USairports.Rd
index 8a70d57..4abee5b 100644
--- a/man/USairports.Rd
+++ b/man/USairports.Rd
@@ -18,7 +18,7 @@ Edge attributes:
 \describe{
 \item{Carrier}{Name of the airline.
 The network includes both domestic and international carriers that performed at least one flight in December of 2010.}
-\item{Departures}{The number of departures (for a given airline and aircraft type.}
+\item{Departures}{The number of departures (for a given airline and aircraft type).}
 \item{Seats}{The total number of seats available on the flights carried out by a given airline, using a given aircraft type.}
 \item{Passengers}{The total number of passangers on the flights carried out by a given airline, using a given aircraft type.}
 \item{Aircraft}{Type of the aircraft.}
diff --git a/man/yeast.Rd b/man/yeast.Rd
index a98d788..e7f88a2 100644
--- a/man/yeast.Rd
+++ b/man/yeast.Rd
@@ -29,7 +29,7 @@ and \sQuote{control of cellular organization}}
 }
 
 Vertex attributes: \sQuote{name}, \sQuote{Description}, \sQuote{Class},
-the last one contains the class of the protein, accoring to the classification above.
+the last one contains the class of the protein, according to the classification above.
 
 Note that some proteins in the network did not appear in the annotation files,
 the \sQuote{Class} and \sQuote{Description} attributes are \code{NA} for these.