diff --git a/lib/errors/CustomValidationError.js b/lib/errors/CustomValidationError.js
new file mode 100644
index 0000000..64e9a00
--- /dev/null
+++ b/lib/errors/CustomValidationError.js
@@ -0,0 +1,12 @@
+var util = require('util');
+
+var CustomValidationError = function (message, property) {
+  Error.captureStackTrace(this, this);
+  this.message = message;
+  this.property = property;
+};
+
+util.inherits(CustomValidationError, Error);
+CustomValidationError.prototype.name = 'CustomValidationError';
+
+module.exports = CustomValidationError;
\ No newline at end of file
diff --git a/lib/errors/TypeValidationError.js b/lib/errors/TypeValidationError.js
new file mode 100644
index 0000000..58350b9
--- /dev/null
+++ b/lib/errors/TypeValidationError.js
@@ -0,0 +1,13 @@
+var util = require('util');
+
+var TypeValidationError = function (message, property, correctType) {
+  Error.captureStackTrace(this, this);
+  this.message = message;
+  this.property = property;
+  this.correctType = correctType;
+};
+
+util.inherits(TypeValidationError, Error);
+TypeValidationError.prototype.name = 'TypeValidationError';
+
+module.exports = TypeValidationError;
\ No newline at end of file