diff --git a/README.md b/README.md
index 391bd09..f0cea17 100644
--- a/README.md
+++ b/README.md
@@ -143,7 +143,7 @@ npx tape ./tests/helpers.js | npx tap-spec
 
 Piping to `tap-spec` is optional, but it makes the output easier to read.
 
-<!-- 
+<!--
 # Publish
 
 ```shell
@@ -152,9 +152,11 @@ npm publish --access public
 
 # Mark release tag
 
+Use IDE to mark tag. Then push to repos:
+
 ```shell
+git push origin {tag_name}
 ```
-git push {tag_name}
 -->
 
 # 🚀 Quick start
@@ -203,7 +205,7 @@ const ast = S.parse(`( 1 "a \\"b\\" c" true null d (e f ()) )`)
 
 if (S.isExpression(ast)) {
     console.log(`ast is an expression: ${JSON.stringify(ast)}`)
-} else {    
+} else {
     throw Error(`ast is not a valid expression`)
 }
 
@@ -229,11 +231,11 @@ for (let e of ast) {
 Output:
 
 ```clj
-ast is an expression: [1,"\"a \"b\" c\"","true","null","d",["e","f",[]]]
+ast is an expression: [1,"\"a \\\"b\\\" c\"","true","null","d",["e","f",[]]]
 ast[0] is a number with value: 1
-ast[1] is a string with value: "a \"b\" c"
+ast[1] is a string with value: "a \\\"b\\\" c"
 ast[2] is a boolean with value: true
-ast[3] is a null with value: null
+ast[3] is null: null
 ast[4] is an atom with id: d
 ast[5] is an expression: ["e","f",[]]
 ```
@@ -305,16 +307,16 @@ The project is [MIT License](https://github.com/NLKNguyen/code-formation/blob/ma
 
 It is a simple permissive license with conditions only requiring the preservation of copyright and license notices. Licensed works, modifications, and larger works may be distributed under different terms and without source code.
 
-<!-- 
+<!--
 This snippet is used to transform the generated API markdown to include a divider
-It's idempotent, meaning that it can run multiple times but will not add more 
+It's idempotent, meaning that it can run multiple times but will not add more
 dividers than necessary.
 
 // $<:AddDivider (LANGUAGE "nodejs")
 
 module.exports = async (context) => {
   const regex = /(?<!---)(\r?\n\r?\n)(###\s)/gm
-  /* 
+  /*
     if matched, (\r?\n\r?\n) => $1
                 (###\s) => $2
   */
@@ -440,13 +442,13 @@ to LISP dialects such as CLIPS, Clojure, Scheme, Racket, etc.
 
 #### Parameters
 
-*   `expression`  
+*   `expression`
 *   `context`   (optional, default `{}`)
 *   `state`   (optional, default `{scoped:[],globals:{}}`)
 *   `entity`   (optional, default `this.ROOT`)
-*   `E` **any** 
+*   `E` **any**
 
-Returns **any** 
+Returns **any**
 
 ---
 
@@ -487,7 +489,7 @@ Serialize an expression tree into an S-expression string
 *   `opts` **any** serializing options (optional, default `{includingRootParentheses:true}`)
 *   `level`   (optional, default `0`)
 
-Returns **any** 
+Returns **any**
 
 ---
 
@@ -497,7 +499,7 @@ Create an identifier symbol
 
 #### Parameters
 
-*   `id` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** 
+*   `id` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)**
 
 #### Examples
 
diff --git a/index.js b/index.js
index e29c77b..b8304c5 100644
--- a/index.js
+++ b/index.js
@@ -298,8 +298,10 @@ class SExpr {
         t[i] =
           "'" +
           ti
+            .replaceAll("\\", "\\\\")
             .replaceAll("\r", "\\r")
             .replaceAll("\n", "\\n")
+            .replaceAll("\t", "\\t")
             .replaceAll("'", "\\'") +
           "'"
       if (i > 0 && ti != "]" && t[i - 1].trim() != "(") t.splice(i, 0, ",")
diff --git a/package-lock.json b/package-lock.json
index 2d6644f..106e64e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "s-expression.js",
-  "version": "0.6.2",
+  "version": "0.6.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 512f221..23e7459 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "s-expression.js",
-  "version": "0.6.2",
+  "version": "0.6.3",
   "description": "S-Expression Parser, Serializer, and Tree Constructor / Walker Utilities in JavaScript for Browsers and Node.js",
   "main": "index.js",
   "files": [
diff --git a/tests/interpret.js b/tests/interpret.js
index 16a1637..59d5643 100644
--- a/tests/interpret.js
+++ b/tests/interpret.js
@@ -1,4 +1,5 @@
 const test = require("tape")
+const util = require("util")
 const colorize = require("json-colorizer")
 const _ = require("lodash")
 const SExpr = require("../index")
@@ -136,14 +137,14 @@ test("interpret method", async function (t) {
     },
     {
       note: "multiline string with escaped quotes",
-      input: `(a "multi\n line\n  string \\"with \nquotes\\"")`,
+      input: '(a "multi\n line\n  string \\"with \nquotes\\"")',
       parsingOpts: { includedRootParentheses: true },
       expect: {
-        [S.ROOT]: [
+        "[ ROOT ]": [
           {
-            [S.ATOM]: "a",
+            "[ ATOM ]": "a",
           },
-          'multi\n line\n  string "with \nquotes"',
+          'multi\n line\n  string \\"with \nquotes\\"',
         ],
       },
     },
@@ -196,13 +197,13 @@ test("interpret method", async function (t) {
     // console.dir(ast)
 
     const context = testCase.context || {}
-    if (testCase.context) {
-      console.dir({
-        "testCase.context": testCase.context,
-        context,
-      })
-      // process.exit()
-    }
+    // if (testCase.context) {
+    //   console.dir({
+    //     "testCase.context": testCase.context,
+    //     context,
+    //   })
+    //   // process.exit()
+    // }
     const output = await S.interpret(ast, context)
     console.log(
       "Output : " +
@@ -210,6 +211,7 @@ test("interpret method", async function (t) {
           pretty: true,
         })
     )
+    // console.log(util.inspect(output, {showHidden: false, depth: null, colors: true}))
 
     const expect = testCase.expect
     console.log("Expect : " + JSON.stringify(expect))
diff --git a/tests/parse.js b/tests/parse.js
index 4bc9fff..5029769 100644
--- a/tests/parse.js
+++ b/tests/parse.js
@@ -7,9 +7,9 @@ test("parse method", function (t) {
   const S = new SExpr()
   let testCases = [
     {
-      input: `( 1 "a \\"b\\" c" true null d (e f ()) )`,
-      expect: [1, '"a "b" c"', "true", "null", "d", ["e", "f", []]],
-      opts: { includedRootParentheses: true }
+      input: '( 1 "a \\"b\\" c" true null d (e f ()) )',
+      expect: [1, '"a \\"b\\" c"', "true", "null", "d", ["e", "f", []]],
+      opts: { includedRootParentheses: true },
     },
   ]
   t.plan(testCases.length)
@@ -35,7 +35,7 @@ test("parse method", function (t) {
     )
 
     console.log(`---`)
-    
+
     if (S.isExpression(ast)) {
       console.log(`ast is an expression: ${colorize(JSON.stringify(ast))}`)
     } else {
@@ -78,4 +78,3 @@ test("parse method", function (t) {
     console.log()
   }
 })
-