diff --git a/app/src/actions/Tree.ts b/app/src/actions/Tree.ts
index 99072f3..4bcb9f5 100644
--- a/app/src/actions/Tree.ts
+++ b/app/src/actions/Tree.ts
@@ -104,7 +104,7 @@ export const togglePause = (tree?: q.Tree<TopicViewModel>) => (dispatch: Dispatc
   setTimeout(() => {
     tree && tree.applyUnmergedChanges()
     if (paused && changes > 0) {
-      dispatch(globalActions.showNotification(`Sucessfully applied ${changes} changes.`))
+      dispatch(globalActions.showNotification(`Successfully applied ${changes} changes.`))
     }
   }, 50)
 
diff --git a/app/src/components/ErrorBoundary.tsx b/app/src/components/ErrorBoundary.tsx
index 6e9a5db..0ad5f00 100644
--- a/app/src/components/ErrorBoundary.tsx
+++ b/app/src/components/ErrorBoundary.tsx
@@ -2,7 +2,7 @@ import * as React from 'react'
 import PersistentStorage from '../utils/PersistentStorage'
 import SentimentDissatisfied from '@material-ui/icons/SentimentDissatisfied'
 import Warning from '@material-ui/icons/Warning'
-import { electronRendererTelementry } from 'electron-telemetry'
+import { electronRendererTelemetry } from 'electron-telemetry'
 import { Theme, withStyles } from '@material-ui/core/styles'
 import { Button, Modal, Paper, Toolbar, Typography } from '@material-ui/core'
 
@@ -33,7 +33,7 @@ class ErrorBoundary extends React.Component<Props, State> {
   }
 
   public componentDidCatch(error: Error, errorInfo: any) {
-    electronRendererTelementry.trackError(error)
+    electronRendererTelemetry.trackError(error)
     console.log('did catch', error)
   }
 
diff --git a/app/src/utils/bugtracking.ts b/app/src/utils/bugtracking.ts
index 0774a7f..275fdfb 100644
--- a/app/src/utils/bugtracking.ts
+++ b/app/src/utils/bugtracking.ts
@@ -1,4 +1,4 @@
-import { electronRendererTelementry } from 'electron-telemetry'
+import { electronRendererTelemetry } from 'electron-telemetry'
 
-const telemetry = electronRendererTelementry
-electronRendererTelementry.registerErrorHandler()
+const telemetry = electronRendererTelemetry
+electronRendererTelemetry.registerErrorHandler()
diff --git a/app/src/utils/tracking.ts b/app/src/utils/tracking.ts
index fdfe9b9..855fc97 100644
--- a/app/src/utils/tracking.ts
+++ b/app/src/utils/tracking.ts
@@ -1,18 +1,18 @@
-import { electronRendererTelementry } from 'electron-telemetry'
+import { electronRendererTelemetry } from 'electron-telemetry'
 
 // Used to determine long-time-stability and memory leaks
 function trackProcessStatistics() {
   setInterval(() => {
     try {
-      electronRendererTelementry.trackCustomEvent({
+      electronRendererTelemetry.trackCustomEvent({
         name: 'heapStatistics',
         payload: process.getHeapStatistics(),
       })
-      electronRendererTelementry.trackCustomEvent({
+      electronRendererTelemetry.trackCustomEvent({
         name: 'cpuUsage',
         payload: process.getCPUUsage(),
       })
-      electronRendererTelementry.trackCustomEvent({
+      electronRendererTelemetry.trackCustomEvent({
         name: 'runningSince',
         payload: performance.now(),
       })
@@ -30,6 +30,6 @@ export function trackEvent(name: string) {
   }
   const blacklist = ['CONNECTION_SET_HEALTH']
   if (blacklist.indexOf(name) === -1) {
-    electronRendererTelementry.trackEvent(name)
+    electronRendererTelemetry.trackEvent(name)
   }
 }
diff --git a/backend/src/Model/spec/Edge.spec.ts b/backend/src/Model/spec/Edge.spec.ts
index c72ae54..e94c049 100644
--- a/backend/src/Model/spec/Edge.spec.ts
+++ b/backend/src/Model/spec/Edge.spec.ts
@@ -10,7 +10,7 @@ describe('Edge', () => {
     expect(e.name).to.equal('foo')
   })
 
-  it('firstEdge should retireve the first edge', () => {
+  it('firstEdge should retrieve the first edge', () => {
     const topics = 'foo/bar/baz'.split('/')
     const leaf = TreeNodeFactory.fromEdgesAndValue(topics, undefined)
     const bazEdge = leaf.sourceEdge
diff --git a/backend/src/Model/spec/EventDispatcher.spec.ts b/backend/src/Model/spec/EventDispatcher.spec.ts
index c0c6571..153e774 100644
--- a/backend/src/Model/spec/EventDispatcher.spec.ts
+++ b/backend/src/Model/spec/EventDispatcher.spec.ts
@@ -20,9 +20,9 @@ describe('EventDispatcher', async () => {
   it('should unsubscribe', async function() {
     const dispatcher = new EventDispatcher<string, string>()
     this.timeout(300)
-    let incrementee = 0
+    let callbackCounter = 0
     const callback = (msg: any) => {
-      incrementee += 1
+      callbackCounter += 1
     }
 
     dispatcher.subscribe(callback)
@@ -36,6 +36,6 @@ describe('EventDispatcher', async () => {
     // should not cause any increment
     dispatcher.dispatch('hello')
 
-    expect(incrementee).to.eq(1)
+    expect(callbackCounter).to.eq(1)
   })
 })
diff --git a/backend/src/index.ts b/backend/src/index.ts
index bf5dc92..0f73129 100644
--- a/backend/src/index.ts
+++ b/backend/src/index.ts
@@ -62,17 +62,17 @@ export class ConnectionManager {
     })
   }
 
-  public removeConnection(conenctionId: string) {
-    const connection = this.connections[conenctionId]
+  public removeConnection(connectionId: string) {
+    const connection = this.connections[connectionId]
     if (connection) {
-      backendEvents.unsubscribeAll(makePublishEvent(conenctionId))
+      backendEvents.unsubscribeAll(makePublishEvent(connectionId))
       connection.disconnect()
-      delete this.connections[conenctionId]
+      delete this.connections[connectionId]
       connection.stateMachine.onUpdate.removeAllListeners()
     }
   }
 
   public closeAllConnections() {
-    Object.keys(this.connections).forEach(conenctionId => this.removeConnection(conenctionId))
+    Object.keys(this.connections).forEach(connectionId => this.removeConnection(connectionId))
   }
 }