diff --git a/environment.yml b/environment.yml
index 7424c22b..66d75e9c 100644
--- a/environment.yml
+++ b/environment.yml
@@ -1,4 +1,4 @@
-name: quantecon
+name: lecture-python-programming
 channels:
   - default
 dependencies:
@@ -7,17 +7,14 @@ dependencies:
   - pip
   - pip:
     - jupyter-book==0.15.1
-    - quantecon-book-theme==0.4.1
+    - quantecon-book-theme==0.5.0
     - sphinx-tojupyter==0.3.0
     - sphinxext-rediraffe==0.2.7
     - sphinx-exercise==0.4.1
-    - ghp-import==1.1.0
-    - sphinxcontrib-youtube==1.1.0
-    - sphinx-togglebutton==0.3.1
+    - ghp-import==2.1.0
+    - sphinxcontrib-youtube==1.2.0
+    - sphinx-togglebutton==0.3.2
+    - arviz==0.13.0
+    - kaleido
     # Docker Requirements
     - pytz
-    # Additional Requirements
-    - array-to-latex
-    - prettytable
-
-
diff --git a/lectures/_config.yml b/lectures/_config.yml
index a36b2ba6..9d59422a 100644
--- a/lectures/_config.yml
+++ b/lectures/_config.yml
@@ -15,7 +15,7 @@ latex:
      targetname: quantecon-python-programming.tex
 
 sphinx:
-  extra_extensions: [sphinx_multitoc_numbering, sphinxext.rediraffe, sphinx_tojupyter, sphinx_exercise, sphinx_togglebutton]
+  extra_extensions: [sphinx_multitoc_numbering, sphinxext.rediraffe, sphinx_exercise, sphinx_togglebutton] # sphinx_tojupyter,
   config:
     html_favicon: _static/lectures-favicon.ico
     html_theme: quantecon_book_theme
@@ -37,7 +37,8 @@ sphinx:
         binderhub_url             : https://mybinder.org  # The URL of the BinderHub (e.g., https://mybinder.org)
         colab_url                 : https://colab.research.google.com
         thebe                     : false  # Add a thebe button to pages (requires the repository to run on Binder)
-    mathjax_path: https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js
+      sticky_contents: true
+    mathjax_path: https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-svg.js
     rediraffe_redirects:
       index_toc.md: intro.md
     tojupyter_static_file_path: ["source/_static", "_static"]
diff --git a/lectures/math2.py b/lectures/math2.py
new file mode 100644
index 00000000..c41e3d7a
--- /dev/null
+++ b/lectures/math2.py
@@ -0,0 +1 @@
+pi = 'foobar'
diff --git a/lectures/mod.py b/lectures/mod.py
new file mode 100644
index 00000000..1b0c806d
--- /dev/null
+++ b/lectures/mod.py
@@ -0,0 +1 @@
+print(__name__)
diff --git a/lectures/newfile.txt b/lectures/newfile.txt
new file mode 100644
index 00000000..119fdd30
--- /dev/null
+++ b/lectures/newfile.txt
@@ -0,0 +1,2 @@
+Testing
+Testing again
\ No newline at end of file
diff --git a/lectures/numbers.txt b/lectures/numbers.txt
new file mode 100644
index 00000000..5a6193d8
--- /dev/null
+++ b/lectures/numbers.txt
@@ -0,0 +1,6 @@
+prices
+3
+8
+
+7
+21
diff --git a/lectures/test.py b/lectures/test.py
new file mode 100644
index 00000000..71c4f375
--- /dev/null
+++ b/lectures/test.py
@@ -0,0 +1,8 @@
+def g(x):
+    a = 1
+    x = x + a
+    return x
+
+a = 0
+y = g(10)
+print("a = ", a, "y = ", y)
diff --git a/lectures/test_table.csv b/lectures/test_table.csv
new file mode 100644
index 00000000..03fcd0fb
--- /dev/null
+++ b/lectures/test_table.csv
@@ -0,0 +1,11 @@
+Date,Open,High,Low,Close,Volume,Adj Close
+2009-05-21,9280.35,9286.35,9189.92,9264.15,133200,9264.15
+2009-05-20,9372.72,9399.40,9311.61,9344.64,143200,9344.64
+2009-05-19,9172.56,9326.75,9166.97,9290.29,167000,9290.29
+2009-05-18,9167.05,9167.82,8997.74,9038.69,147800,9038.69
+2009-05-15,9150.21,9272.08,9140.90,9265.02,172000,9265.02
+2009-05-14,9212.30,9223.77,9052.41,9093.73,169400,9093.73
+2009-05-13,9305.79,9379.47,9278.89,9340.49,176000,9340.49
+2009-05-12,9358.25,9389.61,9298.61,9298.61,188400,9298.61
+2009-05-11,9460.72,9503.91,9342.75,9451.98,230800,9451.98
+2009-05-08,9351.40,9464.43,9349.57,9432.83,220200,9432.83
diff --git a/lectures/us_cities.txt b/lectures/us_cities.txt
new file mode 100644
index 00000000..9be9260f
--- /dev/null
+++ b/lectures/us_cities.txt
@@ -0,0 +1,9 @@
+new york: 8244910
+los angeles: 3819702
+chicago: 2707120
+houston: 2145146
+philadelphia: 1536471
+phoenix: 1469471
+san antonio: 1359758
+san diego: 1326179
+dallas: 1223229