diff --git a/doc/doxygen/taler.doxy b/doc/doxygen/taler.doxy
index 41e087845..a8f4f9b71 100644
--- a/doc/doxygen/taler.doxy
+++ b/doc/doxygen/taler.doxy
@@ -85,7 +85,7 @@ CREATE_SUBDIRS         = YES
 # level increment doubles the number of directories, resulting in 4096
 # directories at level 8 which is the default and also the maximum value. The
 # sub-directories are organized in 2 levels, the first level always has a fixed
-# numer of 16 directories.
+# number of 16 directories.
 # Minimum value: 0, maximum value: 8, default value: 8.
 # This tag requires that the tag CREATE_SUBDIRS is set to YES.
 
diff --git a/doc/flows/main.tex b/doc/flows/main.tex
index fbda4a881..400403a96 100644
--- a/doc/flows/main.tex
+++ b/doc/flows/main.tex
@@ -40,7 +40,7 @@ The main interactions of the system are:
   \item[shutdown] the Taler payment system operator informs the customers that the system is being shut down for good
 \end{description}
 
-In the analysis of the legal requirements, it is important to differenciate
+In the analysis of the legal requirements, it is important to differentiate
 between transactions between wallets (customer-to-customer) and transactions
 where money flows from a wallet into a bank account (customer-to-merchant) as
 these have different limits: When digital coins are used to pay at a business in
diff --git a/doc/flows/proc-kyb.tex b/doc/flows/proc-kyb.tex
index d7cd64300..df60bfe5d 100644
--- a/doc/flows/proc-kyb.tex
+++ b/doc/flows/proc-kyb.tex
@@ -43,8 +43,8 @@
 \end{figure}
 
 At the beginning of the KYB process, the user needs to specify whether they
-are an {\bf individual} (not incorporated) or a {\bf business}.\footnote{ In
-pratice, we expect most owners of bank accounts crossing the KYB threshold to
+are an {\bf individual} (not incorporated) or a {\bf business}.\footnote{In
+practice, we expect most owners of bank accounts crossing the KYB threshold to
 be businesses, but in principle such a bank account could be owned by an
 individual operating a business without a separate legal entity.}  This then
 determines which types of attributes are collected in the KYB process
diff --git a/src/lib/exchange_api_age_withdraw.c b/src/lib/exchange_api_age_withdraw.c
index c5321fdcf..9122dff70 100644
--- a/src/lib/exchange_api_age_withdraw.c
+++ b/src/lib/exchange_api_age_withdraw.c
@@ -770,7 +770,7 @@ csr_withdraw_done (
  *
  * @param awh The handler to the age-withdraw
  * @param num_coins The number of coins in @e coin_inputs
- * @param coin_inputs The input for the individial coin(-candidates)
+ * @param coin_inputs The input for the individual coin(-candidates)
  * @return GNUNET_OK on success, GNUNET_SYSERR on failure
  */
 static