diff --git a/journal/Readme.md b/journal/Readme.md
index 4ec8465ae095dddca9edae12b553fd444ace9139..f8ef754ff85b3b43fdd5505c01589f1ac3edd38d 100644
--- a/journal/Readme.md
+++ b/journal/Readme.md
@@ -46,4 +46,9 @@ A computational document (presentation of data + calculation code):
 
 - Jupyter notebook: R, python, Ruby (output with Markdown, not flexible, but configurable).
 - Rstudio: R, python (output with Markdown, not flexible, but configurable).
-- OrgMode: any language (output with Org, very flexible with native LaTeX).
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+- OrgMode: any language (output with Org, very flexible with native LaTeX).
+
+## Jupyter notebook
+
+- careful with cell running, the environment is not changed for other cells. better run the whole document.
+- lsmagic = lists commands useful in some cases (ex. to plot data).
\ No newline at end of file