diff --git a/spec/latest/core/index.html b/spec/latest/core/index.html
index e456124..dfb3ffc 100644
--- a/spec/latest/core/index.html
+++ b/spec/latest/core/index.html
@@ -407,7 +407,7 @@
       RDF, which is a graph, it may happen that a related resource
       (an object of the relation) may not be fully described in the
       resource's payload. In several circumstances (i.e. payload terms
-      defined in <i>API documentation</i> sa described in
+      defined in <i>API documentation</i> as described in
       <a href="#documenting-a-web-api">Documenting a Web API</a>
       or <i>IriTemplate</i> expected as a related resource as described in
       <a href="#templated-links">Templated Links</a>) client may
@@ -482,7 +482,7 @@
     <p>Keep in mind that any resource described by any hypermedia control
       may fail at runtime due to various reasons. Operation details
       such as <i>returns</i> or <i>possibleStatus</i> may also vary at runtime,
-      which means client SHOULD always verify received payloads at runtime.
+      which means clients SHOULD always verify received payloads at runtime.
       </p>
   </section>
 
@@ -500,7 +500,7 @@
 
     <p>Hydra's <i>ApiDocumentation</i> class builds the foundation for
       the description of a Web API. As shown in the following example,
-      Hydra describes a API by giving it a title, a short description, and
+      Hydra describes an API by giving it a title, a short description, and
       documenting its main entry point. Furthermore, the classes known to
       be supported by the Web API and additional information about status
       codes that might be returned can be documented. This information