diff --git a/src/Connector.js b/src/Connector.js
index 3faee8b8..dbf85047 100644
--- a/src/Connector.js
+++ b/src/Connector.js
@@ -140,8 +140,8 @@ export default class AbstractConnector {
     if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
       throw new Error('Expected Message to be an ArrayBuffer or Uint8Array - don\'t use this method to send custom messages')
     }
-    this.log('%s: Send \'%y\' to %s', y.userID, buffer, uid)
-    this.logMessage('Message: %Y', [y, buffer])
+    this.log('User%s to User%s: Send \'%y\'', y.userID, uid, buffer)
+    this.logMessage('User%s to User%s: Send %Y', y.userID, uid, [y, buffer])
   }
 
   broadcast (buffer) {
@@ -149,8 +149,8 @@ export default class AbstractConnector {
     if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
       throw new Error('Expected Message to be an ArrayBuffer or Uint8Array - don\'t use this method to send custom messages')
     }
-    this.log('%s: Broadcast \'%y\'', y.userID, buffer)
-    this.logMessage('Message: %Y', [y, buffer])
+    this.log('User%s: Broadcast \'%y\'', y.userID, buffer)
+    this.logMessage('User%s: Broadcast: %Y', y.userID, [y, buffer])
   }
 
   /*
@@ -216,8 +216,8 @@ export default class AbstractConnector {
     encoder.writeVarString(roomname)
     let messageType = decoder.readVarString()
     let senderConn = this.connections.get(sender)
-    this.log('%s: Receive \'%s\' from %s', userID, messageType, sender)
-    this.logMessage('Message: %Y', [y, buffer])
+    this.log('User%s from User%s: Receive \'%s\'', userID, sender, messageType)
+    this.logMessage('User%s from User%s: Receive %Y', userID, sender, [y, buffer])
     if (senderConn == null && !skipAuth) {
       throw new Error('Received message from unknown peer!')
     }
diff --git a/src/MessageHandler/integrateRemoteStructs.js b/src/MessageHandler/integrateRemoteStructs.js
index d3246cd6..074c6b3b 100644
--- a/src/MessageHandler/integrateRemoteStructs.js
+++ b/src/MessageHandler/integrateRemoteStructs.js
@@ -1,6 +1,7 @@
 import { getStruct } from '../Util/structReferences.js'
 import BinaryDecoder from '../Binary/Decoder.js'
 import Delete from '../Struct/Delete.js'
+import { logID } from './messageToString.js'
 
 class MissingEntry {
   constructor (decoder, missing, struct) {
@@ -17,7 +18,7 @@ class MissingEntry {
  */
 function _integrateRemoteStructHelper (y, struct) {
   struct._integrate(y)
-  if (!(struct instanceof Delete)) {
+  if (struct.constructor !== Delete) {
     let msu = y._missingStructs.get(struct._id.user)
     if (msu != null) {
       let len = struct._length
@@ -46,11 +47,10 @@ export function stringifyStructs (y, decoder, strBuilder) {
     let Constr = getStruct(reference)
     let struct = new Constr()
     let missing = struct._fromBinary(y, decoder)
-    let logMessage = struct._logString()
+    let logMessage = '  ' + struct._logString()
     if (missing.length > 0) {
-      logMessage += missing.map(id => `ID (user: ${id.user}, clock: ${id.clock})`).join(', ')
+      logMessage += ' .. missing: ' + missing.map(logID).join(', ')
     }
-    logMessage += '\n'
     strBuilder.push(logMessage)
   }
 }
diff --git a/src/MessageHandler/messageToString.js b/src/MessageHandler/messageToString.js
index fa4ff5a3..82045d2e 100644
--- a/src/MessageHandler/messageToString.js
+++ b/src/MessageHandler/messageToString.js
@@ -2,13 +2,16 @@ import BinaryDecoder from '../Binary/Decoder.js'
 import { stringifyStructs } from './integrateRemoteStructs.js'
 import { stringifySyncStep1 } from './syncStep1.js'
 import { stringifySyncStep2 } from './syncStep2.js'
+import ID from '../Util/ID.js'
+import RootID from '../Util/RootID.js'
+import Y from '../Y.js'
 
 export function messageToString ([y, buffer]) {
   let decoder = new BinaryDecoder(buffer)
   decoder.readVarString() // read roomname
   let type = decoder.readVarString()
   let strBuilder = []
-  strBuilder.push('\n === ' + type + ' ===\n')
+  strBuilder.push('\n === ' + type + ' ===')
   if (type === 'update') {
     stringifyStructs(y, decoder, strBuilder)
   } else if (type === 'sync step 1') {
@@ -26,3 +29,20 @@ export function messageToRoomname (buffer) {
   decoder.readVarString() // roomname
   return decoder.readVarString() // messageType
 }
+
+export function logID (id) {
+  if (id !== null && id._id != null) {
+    id = id._id
+  }
+  if (id === null) {
+    return '()'
+  } else if (id instanceof ID) {
+    return `(${id.user},${id.clock})`
+  } else if (id instanceof RootID) {
+    return `(${id.name},${id.type})`
+  } else if (id.constructor === Y) {
+    return `y`
+  } else {
+    throw new Error('This is not a valid ID!')
+  }
+}
diff --git a/src/MessageHandler/syncStep1.js b/src/MessageHandler/syncStep1.js
index 7908eeea..3992862a 100644
--- a/src/MessageHandler/syncStep1.js
+++ b/src/MessageHandler/syncStep1.js
@@ -7,18 +7,17 @@ import { RootFakeUserID } from '../Util/RootID.js'
 export function stringifySyncStep1 (y, decoder, strBuilder) {
   let auth = decoder.readVarString()
   let protocolVersion = decoder.readVarUint()
-  strBuilder.push(`
-  - auth: "${auth}"
-  - protocolVersion: ${protocolVersion}
-`)
+  strBuilder.push(`  - auth: "${auth}"`)
+  strBuilder.push(`  - protocolVersion: ${protocolVersion}`)
   // write SS
-  strBuilder.push('  == SS: \n')
+  let ssBuilder = []
   let len = decoder.readUint32()
   for (let i = 0; i < len; i++) {
     let user = decoder.readVarUint()
     let clock = decoder.readVarUint()
-    strBuilder.push(`     ${user}: ${clock}\n`)
+    ssBuilder.push(`(${user}:${clock})`)
   }
+  strBuilder.push('  == SS: ' + ssBuilder.join(','))
 }
 
 export function sendSyncStep1 (connector, syncUser) {
diff --git a/src/MessageHandler/syncStep2.js b/src/MessageHandler/syncStep2.js
index 713cf243..eda109de 100644
--- a/src/MessageHandler/syncStep2.js
+++ b/src/MessageHandler/syncStep2.js
@@ -2,10 +2,9 @@ import { stringifyStructs, integrateRemoteStructs } from './integrateRemoteStruc
 import { readDeleteSet } from './deleteSet.js'
 
 export function stringifySyncStep2 (y, decoder, strBuilder) {
-  strBuilder.push('     - auth: ' + decoder.readVarString() + '\n')
-  strBuilder.push('  == OS: \n')
+  strBuilder.push('     - auth: ' + decoder.readVarString())
   // write DS to string
-  strBuilder.push('  == DS: \n')
+  strBuilder.push('  == DS:')
   let len = decoder.readUint32()
   for (let i = 0; i < len; i++) {
     let user = decoder.readVarUint()
@@ -18,6 +17,7 @@ export function stringifySyncStep2 (y, decoder, strBuilder) {
       strBuilder.push(`[${from}, ${to}, ${gc}]`)
     }
   }
+  strBuilder.push('  == OS:')
   stringifyStructs(y, decoder, strBuilder)
 }
 
diff --git a/src/Store/DeleteStore.js b/src/Store/DeleteStore.js
index 68aa01a2..9256fecf 100644
--- a/src/Store/DeleteStore.js
+++ b/src/Store/DeleteStore.js
@@ -13,6 +13,18 @@ class DSNode {
 }
 
 export default class DeleteStore extends Tree {
+  logTable () {
+    const deletes = []
+    this.iterate(null, null, function (n) {
+      deletes.push({
+        user: n._id.user,
+        clock: n._id.clock,
+        len: n.len,
+        gc: n.gc
+      })
+    })
+    console.table(deletes)
+  }
   isDeleted (id) {
     var n = this.findWithUpperBound(id)
     return n !== null && n._id.user === id.user && id.clock < n._id.clock + n.len
diff --git a/src/Store/OperationStore.js b/src/Store/OperationStore.js
index 73daf212..7cc5f887 100644
--- a/src/Store/OperationStore.js
+++ b/src/Store/OperationStore.js
@@ -1,12 +1,30 @@
 import Tree from '../Util/Tree.js'
 import RootID from '../Util/RootID.js'
 import { getStruct } from '../Util/structReferences.js'
+import { logID } from '../MessageHandler/messageToString.js'
 
 export default class OperationStore extends Tree {
   constructor (y) {
     super()
     this.y = y
   }
+  logTable () {
+    const items = []
+    this.iterate(null, null, function (item) {
+      items.push({
+        id: logID(item),
+        origin: logID(item._origin === null ? null : item._origin._lastId),
+        left: logID(item._left === null ? null : item._left._lastId),
+        right: logID(item._right),
+        right_origin: logID(item._right_origin),
+        parent: logID(item._parent),
+        parentSub: item._parentSub,
+        deleted: item._deleted,
+        content: JSON.stringify(item._content)
+      })
+    })
+    console.table(items)
+  }
   get (id) {
     let struct = this.find(id)
     if (struct === null && id instanceof RootID) {
diff --git a/src/Store/StateStore.js b/src/Store/StateStore.js
index 13a91f32..a4492f2c 100644
--- a/src/Store/StateStore.js
+++ b/src/Store/StateStore.js
@@ -5,6 +5,15 @@ export default class StateStore {
     this.y = y
     this.state = new Map()
   }
+  logTable () {
+    const entries = []
+    for (let [user, state] of this.state) {
+      entries.push({
+        user, state
+      })
+    }
+    console.table(entries)
+  }
   getNextID (len) {
     const user = this.y.userID
     const state = this.getState(user)
diff --git a/src/Struct/Item.js b/src/Struct/Item.js
index 7b9d81d3..c7ceffed 100644
--- a/src/Struct/Item.js
+++ b/src/Struct/Item.js
@@ -297,7 +297,4 @@ export default class Item {
     }
     return missing
   }
-  _logString () {
-    return `left: ${this._left}, origin: ${this._origin}, right: ${this._right}, parent: ${this._parent}, parentSub: ${this._parentSub}`
-  }
 }
diff --git a/src/Struct/ItemJSON.js b/src/Struct/ItemJSON.js
index d62403de..f17b9bae 100644
--- a/src/Struct/ItemJSON.js
+++ b/src/Struct/ItemJSON.js
@@ -1,4 +1,5 @@
 import { splitHelper, default as Item } from './Item.js'
+import { logID } from '../MessageHandler/messageToString.js'
 
 export default class ItemJSON extends Item {
   constructor () {
@@ -27,8 +28,7 @@ export default class ItemJSON extends Item {
     }
   }
   _logString () {
-    let s = super._logString()
-    return 'ItemJSON: ' + s
+    return `ItemJSON(id:${logID(this._id)},content:${JSON.stringify(this._content)},left:${logID(this._left)},origin:${logID(this._origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${logID(this._parentSub)})`
   }
   _splitAt (y, diff) {
     if (diff === 0) {
diff --git a/src/Struct/ItemString.js b/src/Struct/ItemString.js
index bef915b6..eaa504f8 100644
--- a/src/Struct/ItemString.js
+++ b/src/Struct/ItemString.js
@@ -1,4 +1,5 @@
 import { splitHelper, default as Item } from './Item.js'
+import { logID } from '../MessageHandler/messageToString.js'
 
 export default class ItemString extends Item {
   constructor () {
@@ -18,8 +19,7 @@ export default class ItemString extends Item {
     encoder.writeVarString(this._content)
   }
   _logString () {
-    let s = super._logString()
-    return 'ItemString: ' + s
+    return `ItemJSON(id:${logID(this._id)},content:${JSON.stringify(this._content)},left:${logID(this._left)},origin:${logID(this._origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${logID(this._parentSub)})`
   }
   _splitAt (y, diff) {
     if (diff === 0) {
diff --git a/src/Type/YArray.js b/src/Type/YArray.js
index f4a4c3c8..8673d117 100644
--- a/src/Type/YArray.js
+++ b/src/Type/YArray.js
@@ -1,5 +1,6 @@
 import Type from '../Struct/Type.js'
 import ItemJSON from '../Struct/ItemJSON.js'
+import { logID } from '../MessageHandler/messageToString.js'
 
 class YArrayEvent {
   constructor (yarray, remote) {
@@ -203,7 +204,6 @@ export default class YArray extends Type {
     this.insertAfter(left, content)
   }
   _logString () {
-    let s = super._logString()
-    return 'YArray: ' + s
+    return `YArray(id:${logID(this._id)},start:${logID(this._start)},left:${logID(this._left)},origin:${logID(this._origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${logID(this._parentSub)})`
   }
 }
diff --git a/src/Type/YMap.js b/src/Type/YMap.js
index 76ae00f0..473f04ff 100644
--- a/src/Type/YMap.js
+++ b/src/Type/YMap.js
@@ -1,6 +1,7 @@
 import Type from '../Struct/Type.js'
 import Item from '../Struct/Item.js'
 import ItemJSON from '../Struct/ItemJSON.js'
+import { logID } from '../MessageHandler/messageToString.js'
 
 class YMapEvent {
   constructor (ymap, subs, remote) {
@@ -82,7 +83,6 @@ export default class YMap extends Type {
     }
   }
   _logString () {
-    let s = super._logString()
-    return 'YMap: ' + s
+    return `YMap(id:${logID(this._id)},mapSize:${this._map.size},left:${logID(this._left)},origin:${logID(this._origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${logID(this._parentSub)})`
   }
 }
diff --git a/src/Type/YText.js b/src/Type/YText.js
index ce88adb5..86f1951f 100644
--- a/src/Type/YText.js
+++ b/src/Type/YText.js
@@ -1,5 +1,6 @@
 import ItemString from '../Struct/ItemString.js'
 import YArray from './YArray.js'
+import { logID } from '../MessageHandler/messageToString.js'
 
 export default class YText extends YArray {
   constructor (string) {
@@ -50,4 +51,7 @@ export default class YText extends YArray {
       item._integrate(this._y)
     })
   }
+  _logString () {
+    return `YText(id:${logID(this._id)},start:${logID(this._start)},left:${logID(this._left)},origin:${logID(this._origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${logID(this._parentSub)})`
+  }
 }
diff --git a/src/Type/y-xml/YXmlFragment.js b/src/Type/y-xml/YXmlFragment.js
index 8366f122..a86823a1 100644
--- a/src/Type/y-xml/YXmlFragment.js
+++ b/src/Type/y-xml/YXmlFragment.js
@@ -5,6 +5,7 @@ import { defaultDomFilter, applyChangesFromDom, reflectChangesOnDom } from './ut
 import YArray from '../YArray.js'
 import YXmlText from './YXmlText.js'
 import YXmlEvent from './YXmlEvent.js'
+import { logID } from '../../MessageHandler/messageToString.js'
 
 function domToYXml (parent, doms) {
   const types = []
@@ -151,4 +152,7 @@ export default class YXmlFragment extends YArray {
       this._domObserverListener(this._domObserver.takeRecords())
     }
   }
+  _logString () {
+    return `YXml(id:${logID(this._id)},parent:${logID(this._parent)},parentSub:${this._parentSub})`
+  }
 }