diff --git a/src/Microdown-BookTester-Tests/MiCheckerEngineTest.class.st b/src/Microdown-BookTester-Tests/MiCheckerEngineTest.class.st
new file mode 100644
index 00000000..1022a104
--- /dev/null
+++ b/src/Microdown-BookTester-Tests/MiCheckerEngineTest.class.st
@@ -0,0 +1,78 @@
+Class {
+	#name : 'MiCheckerEngineTest',
+	#superclass : 'TestCase',
+	#instVars : [
+		'fileSystem',
+		'engine',
+		'file'
+	],
+	#category : 'Microdown-BookTester-Tests',
+	#package : 'Microdown-BookTester-Tests'
+}
+
+{ #category : 'running' }
+MiCheckerEngineTest >> generateFilesystemExample [
+	file := fileSystem workingDirectory / 'test.md'.
+	file writeStreamDo: [ :stream |
+		stream nextPutAll: 'The colour of the sky is blue.
+## writing books in pharo'
+		 ].
+]
+
+{ #category : 'running' }
+MiCheckerEngineTest >> setUp [
+	super setUp.
+
+	fileSystem := FileSystem memory.
+	engine := MicCheckerEngine new.
+	self generateFilesystemExample.
+]
+
+{ #category : 'running' }
+MiCheckerEngineTest >> testEngineDetectsHeaderMistake [
+	| config results |
+	config := OrderedDictionary new.
+	config at: 'HeaderCapitalization' put: 'uppercase'.
+	results := engine runOn: file withConfiguration: config.
+	self deny: results isEmpty.
+	self assert: results size equals: 3.
+]
+
+{ #category : 'running' }
+MiCheckerEngineTest >> testEngineDetectsVocabularyMistake [
+	| config results |
+	config := OrderedDictionary new.
+	config at: 'Vocabulary' put: { ('colour' -> 'color') }.
+	results := engine runOn: file withConfiguration: config.
+	self deny: results isEmpty.
+	self assert: results size equals: 1.
+	self assert: (results first explanation includesSubstring: 'colour').
+]
+
+{ #category : 'running' }
+MiCheckerEngineTest >> testEngineRunsMultipleCheckers [
+	| config results |
+	config := OrderedDictionary new.
+	config at: 'Vocabulary' put: { ('colour' -> 'color') }.
+	config at: 'HeaderCapitalization' put: 'uppercase'.
+	results := engine runOn: file withConfiguration: config.
+	self deny: results isEmpty.
+	self assert: results size > 1.
+]
+
+{ #category : 'running' }
+MiCheckerEngineTest >> testEngineWithEmptyConfiguration [
+	| config results |
+	config := OrderedDictionary new.
+	results := engine runOn: file withConfiguration: config.
+	self assert: results isEmpty.
+]
+
+{ #category : 'running' }
+MiCheckerEngineTest >> testEngineWithUnknownChecker [
+	| config results |
+	config := OrderedDictionary new.
+	config at: 'UnknownChecker' put: nil.
+	results := engine runOn: file withConfiguration: config.
+	self assert: results isEmpty.
+]
diff --git a/src/Microdown-BookTester/MicChecker.class.st b/src/Microdown-BookTester/MicChecker.class.st
index bab25928..3d1595a1 100644
--- a/src/Microdown-BookTester/MicChecker.class.st
+++ b/src/Microdown-BookTester/MicChecker.class.st
@@ -18,6 +18,11 @@ Class {
 	#tag : 'Core'
 }
 
+{ #category : 'as yet unclassified' }
+MicChecker class >> checkerName [ 
+	^ 'UnnamedChecker'
+]
+
 { #category : 'visiting' }
 MicChecker >> addResult: aResult [
 
diff --git a/src/Microdown-BookTester/MicCheckerEngine.class.st b/src/Microdown-BookTester/MicCheckerEngine.class.st
new file mode 100644
index 00000000..fd770e3a
--- /dev/null
+++ b/src/Microdown-BookTester/MicCheckerEngine.class.st
@@ -0,0 +1,52 @@
+"
+I am a generic engine that reads a configuration dictionary and instantiates, configures and runs the appropriate checkers.
+I discover all available checkers by looking at all subclasses of MicChecker that respond to #checkerName.
+
+Usage example:
+	| engine config reslts |
+	config := OrderedDictionary new.
+	config at: 'Vocabulary' put: { ('colour' -> 'color') }.
+	config at: 'HeaderCapitalization' put: 'uppercase'.
+	config at: 'EnglishTypographic' put:nil.
+	engine := MicCheckerEngine new.
+	results := engine runOn: 'myFile.md' asFileReference withConfiguration: config.
+	results do: [ :r | Transcript showCr: r explanation ].
+"
+Class {
+	#name : 'MicCheckerEngine',
+	#superclass : 'Object',
+	#category : 'Microdown-BookTester-Core',
+	#package : 'Microdown-BookTester',
+	#tag : 'Core'
+}
+
+{ #category : 'as yet unclassified' }
+MicCheckerEngine >> checkersFromConfiguration: aConfiguration [
+	| availableCheckers activeCheckers |
+	availableCheckers := Dictionary new.
+	MicChecker allSubclasses do: [ :aClass |
+		availableCheckers at: aClass checkerName put: aClass ].
+		activeCheckers := OrderedCollection new.
+		aConfiguration keysAndValuesDo: [ :key :value |
+			| checkerClass checker |
+			checkerClass := availableCheckers at: key ifAbsent: [ nil ].
+			checkerClass ifNotNil: [ 
+				checker := checkerClass new.
+				checker configureFrom: value.
+				activeCheckers add: checker
+			 ]
+		 ].
+	^ activeCheckers 
+]
+
+{ #category : 'as yet unclassified' }
+MicCheckerEngine >> runOn: aFileReference withConfiguration: aConfiguration [
+	| activeCheckers results |
+	activeCheckers := self checkersFromConfiguration: aConfiguration.
+	results := OrderedCollection new.
+	activeCheckers do: [ :checker |
+		checker checkProject: aFileReference.
+		results addAll: checker results
+		 ].
+	^ results 
+]
diff --git a/src/Microdown-Rules/MicElementAfterColonIsNotCapitalizedResult.class.st b/src/Microdown-Rules/MicElementAfterColonIsNotCapitalizedResult.class.st
index 4b245ceb..915d1c95 100644
--- a/src/Microdown-Rules/MicElementAfterColonIsNotCapitalizedResult.class.st
+++ b/src/Microdown-Rules/MicElementAfterColonIsNotCapitalizedResult.class.st
@@ -4,9 +4,9 @@ Class {
 	#instVars : [
 		'detail'
 	],
-	#category : 'Microdown-Rules-EnglishTypographic',
+	#category : 'Microdown-Rules-Capitalization',
 	#package : 'Microdown-Rules',
-	#tag : 'EnglishTypographic'
+	#tag : 'Capitalization'
 }
 
 { #category : 'accessing' }
diff --git a/src/Microdown-Rules/MicElementOfHeaderIsNotCapitalizedResult.class.st b/src/Microdown-Rules/MicElementOfHeaderIsNotCapitalizedResult.class.st
index b28ada41..a813aa21 100644
--- a/src/Microdown-Rules/MicElementOfHeaderIsNotCapitalizedResult.class.st
+++ b/src/Microdown-Rules/MicElementOfHeaderIsNotCapitalizedResult.class.st
@@ -1,12 +1,12 @@
 Class {
 	#name : 'MicElementOfHeaderIsNotCapitalizedResult',
-	#superclass : 'MicReport',
+	#superclass : 'MicAbstractResult',
 	#instVars : [
 		'detail'
 	],
-	#category : 'Microdown-Rules-EnglishTypographic',
+	#category : 'Microdown-Rules-Capitalization',
 	#package : 'Microdown-Rules',
-	#tag : 'EnglishTypographic'
+	#tag : 'Capitalization'
 }
 
 { #category : 'accessing' }
@@ -18,3 +18,8 @@ MicElementOfHeaderIsNotCapitalizedResult >> detail [
 MicElementOfHeaderIsNotCapitalizedResult >> detail: aString [ 
 	detail := aString
 ]
+
+{ #category : 'accessing' }
+MicElementOfHeaderIsNotCapitalizedResult >> explanation [ 
+	^ 'Header: "' , micElement text , '" in file' , fileReference fullName , ' contains a mistake: ' , detail , ' should be capitalized.'
+]
diff --git a/src/Microdown-Rules/MicEnglishTypoChecker.class.st b/src/Microdown-Rules/MicEnglishTypoChecker.class.st
index e4c38766..43a90d69 100644
--- a/src/Microdown-Rules/MicEnglishTypoChecker.class.st
+++ b/src/Microdown-Rules/MicEnglishTypoChecker.class.st
@@ -6,6 +6,11 @@ Class {
 	#tag : 'EnglishTypographic'
 }
 
+{ #category : 'as yet unclassified' }
+MicEnglishTypoChecker class >> checkerName [ 
+	^ 'EnglishTypographic'
+]
+
 { #category : 'adding' }
 MicEnglishTypoChecker >> addResultFor: anElement message: aMessage [
 	results add: (MicSpaceBeforeDiacriticsResult new 
@@ -45,6 +50,11 @@ checks := {
 	].
 ]
 
+{ #category : 'as yet unclassified' }
+MicEnglishTypoChecker >> configureFrom: aConfiguration [
+	^ self
+]
+
 { #category : 'adding' }
 MicEnglishTypoChecker >> visitCode: aCodeBlock [
 
diff --git a/src/Microdown-Rules/MicFirstElementOfHeaderIsNotCapitalizedResult.class.st b/src/Microdown-Rules/MicFirstElementOfHeaderIsNotCapitalizedResult.class.st
index 4713f94a..2b23ff82 100644
--- a/src/Microdown-Rules/MicFirstElementOfHeaderIsNotCapitalizedResult.class.st
+++ b/src/Microdown-Rules/MicFirstElementOfHeaderIsNotCapitalizedResult.class.st
@@ -9,6 +9,12 @@ Class {
 	#tag : 'Capitalization'
 }
 
+{ #category : 'accessing' }
+MicFirstElementOfHeaderIsNotCapitalizedResult >> detail [
+
+	^ detail
+]
+
 { #category : 'accessing' }
 MicFirstElementOfHeaderIsNotCapitalizedResult >> detail: aString [
 
diff --git a/src/Microdown-Rules/MicLastPeriodChecker.class.st b/src/Microdown-Rules/MicLastPeriodChecker.class.st
index 6bcfd611..12066de7 100644
--- a/src/Microdown-Rules/MicLastPeriodChecker.class.st
+++ b/src/Microdown-Rules/MicLastPeriodChecker.class.st
@@ -9,6 +9,11 @@ Class {
 	#tag : 'CodeLastPeriod'
 }
 
+{ #category : 'as yet unclassified' }
+MicLastPeriodChecker class >> checkerName [ 
+	^ 'CodeLastPeriod'
+]
+
 { #category : 'visiting' }
 MicLastPeriodChecker >> checkExtraPeriodIn: aMicCodeBlock [ 
 	
diff --git a/src/Microdown-Rules/MicRuleHeaderChecker.class.st b/src/Microdown-Rules/MicRuleHeaderChecker.class.st
index b83f4342..3b8fe970 100644
--- a/src/Microdown-Rules/MicRuleHeaderChecker.class.st
+++ b/src/Microdown-Rules/MicRuleHeaderChecker.class.st
@@ -11,6 +11,11 @@ Class {
 	#tag : 'Capitalization'
 }
 
+{ #category : 'as yet unclassified' }
+MicRuleHeaderChecker class >> checkerName [ 
+	^ 'HeaderCapitalization'
+]
+
 { #category : 'initialization' }
 MicRuleHeaderChecker >> addUncapitalized: aString [ 
 	"Make sure that aString will not be capitalized"
@@ -39,6 +44,14 @@ MicRuleHeaderChecker >> checkRest: words of: aMicHeader [
 	strategy checkRest: words of: aMicHeader
 ]
 
+{ #category : 'as yet unclassified' }
+MicRuleHeaderChecker >> configureFrom: aConfiguration [
+	aConfiguration isNil ifTrue: [ ^ self ].
+	aConfiguration = 'uppercase'
+		ifTrue: [ self verifyUppercase ]
+		ifFalse: [ self verifyLowercase ]
+]
+
 { #category : 'initialization' }
 MicRuleHeaderChecker >> initialize [
 
diff --git a/src/Microdown-Rules/MicVocabularyChecker.class.st b/src/Microdown-Rules/MicVocabularyChecker.class.st
index fa0343ca..6e72dc43 100644
--- a/src/Microdown-Rules/MicVocabularyChecker.class.st
+++ b/src/Microdown-Rules/MicVocabularyChecker.class.st
@@ -9,6 +9,11 @@ Class {
 	#tag : 'Vocabulary'
 }
 
+{ #category : 'as yet unclassified' }
+MicVocabularyChecker class >> checkerName [
+	^ 'Vocabulary'
+]
+
 { #category : 'visiting - inline elements' }
 MicVocabularyChecker >> checkText: aMicText [
 
@@ -21,6 +26,16 @@ MicVocabularyChecker >> checkText: aMicText [
 							 patternPair: patternPair) ] ]
 ]
 
+{ #category : 'as yet unclassified' }
+MicVocabularyChecker >> configureFrom: aConfiguration [
+	aConfiguration isCollection ifTrue: [ self pairs: aConfiguration ]
+]
+
+{ #category : 'visiting - inline elements' }
+MicVocabularyChecker >> pairs [ 
+	^ patternPairs 
+]
+
 { #category : 'visiting - inline elements' }
 MicVocabularyChecker >> pairs: aCollectionOfPairs [