diff --git a/talks/latex/beamercolorthemerainbow.sty b/talks/latex/beamercolorthemerainbow.sty
new file mode 100644
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--- /dev/null
+++ b/talks/latex/beamercolorthemerainbow.sty
@@ -0,0 +1,69 @@
+% !TeX root = test.tex
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% The rainbow colour theme 
+% A beamer colour theme which alternates theme colours on every frame
+% Maintained by samcarter
+%
+% Project repository and bug tracker:
+% https://github.com/samcarter/beamertheme-rainbow
+%
+% Released under the LaTeX Project Public License v1.3c or later
+% See http://www.latex-project.org/lppl.txt
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\ProvidesPackage{beamercolorthemerainbow}[2023/07/04 version v0.1 Beamer colour theme with alternating theme colours]
+
+\mode<presentation>
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Default colours
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\definecolor{rainbow@0}{HTML}{e50000}
+\definecolor{rainbow@1}{HTML}{ff8d00}
+\definecolor{rainbow@2}{HTML}{ffee00}
+\definecolor{rainbow@3}{HTML}{028121}
+\definecolor{rainbow@4}{HTML}{004cff}
+\definecolor{rainbow@5}{HTML}{770088}
+\colorlet{beamer@structure@color}{rainbow@0}
+\setbeamercolor{structure}{fg=beamer@structure@color}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Reading theme options
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\DeclareOptionBeamer{colors}{\def\rainbow@colors{#1}}
+\ExecuteOptionsBeamer{colors={rainbow@0,rainbow@1,rainbow@2,rainbow@3,rainbow@4,rainbow@5}}
+\ProcessOptionsBeamer
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Defining colours
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\ExplSyntaxOn
+
+% list to store colour list
+\clist_new:N \l_rainbow_clist
+\clist_set:Nx \l_rainbow_clist \rainbow@colors
+
+% setting colour based on frame number
+\pretocmd{\beamer@@@frame}{
+  \colorlet{beamer@structure@color}{
+    \clist_item:Nn \l_rainbow_clist {
+      \int_eval:n {
+        \int_mod:nn { \insertframenumber }{ 
+          \clist_count:N \l_rainbow_clist
+        } + 1
+      }
+    }
+  }
+}{}{}
+
+\ExplSyntaxOff
+
+\mode
+<all>
diff --git a/talks/latex/latex_for_beginners.pdf b/talks/latex/latex_for_beginners.pdf
new file mode 100644
index 0000000..e8fb461
Binary files /dev/null and b/talks/latex/latex_for_beginners.pdf differ
diff --git a/talks/latex/latex_for_beginners.tex b/talks/latex/latex_for_beginners.tex
new file mode 100644
index 0000000..0924ebf
--- /dev/null
+++ b/talks/latex/latex_for_beginners.tex
@@ -0,0 +1,87 @@
+\documentclass[aspectratio=169]{beamer}
+\usepackage{fontspec}
+\setmainfont{Sofia Sans}
+\setsansfont{Noto Sans}
+\setmonofont{Fira Code}
+%%% Fonts and language setup.
+\usepackage{polyglossia}
+\usepackage[autostyle]{csquotes}
+%% Math
+\usepackage{amsmath, amsfonts, amssymb, amsthm, mathtools} % Advanced math tools.
+\usepackage{unicode-math} % Allow TTF and OTF fonts in math and allow direct typing unicode math characters.
+\unimathsetup{
+    warnings-off={
+            mathtools-colon,
+            mathtools-overbracket
+        }
+}
+% \setmathfont{STIX Two Math}
+% \newfontfamily{\cyrillicfont}{Fira Math}
+
+\usepackage{metalogox}
+\usetheme{Rochester}
+\usecolortheme[style=light]{Nord}
+\usefonttheme{Nord}
+
+\usepackage{minted}
+\usemintedstyle{catppuccin-latte}
+
+\title{\LaTeX}
+\subtitle{для самых маленьких}
+\author{Николай Пономарев}
+\institute{мат-мех СПбГУ}
+\date{}
+
+\setbeamertemplate{navigation symbols}{%
+    \usebeamerfont{footline}%
+    \usebeamercolor[fg]{footline}%
+    \hspace{1em}%
+    \insertframenumber/\inserttotalframenumber
+}
+
+%%% Polyglossia setup after (nearly) everything as described in documentation.
+\setdefaultlanguage{russian}
+\setotherlanguage{english}
+
+\begin{document}
+
+\begin{frame}
+    \titlepage
+\end{frame}
+
+\begin{frame}
+    \frametitle{Что это за зверь?}
+    \TeX~--- система компьютерной верстки, созданная Дональдом Кнутом.
+
+    \LaTeX~--- набор макросов для \TeX, созданный Лесли Лэмпортом для облегчения набора сложных документов в \TeX.
+
+    Основные особенности:
+    \begin{itemize}
+        \item Использование языка разметки текстового файла, не WYSIWYG~(What You See Is What You Get) система;
+        \item Разделение содержания и оформления;
+        \item Мощная система перекрёстных ссылок;
+        \item \enquote{Нативная} поддержка математических формул;
+        \item Переносимость и воспроизводимость.
+    \end{itemize}
+\end{frame}
+
+\begin{frame}[allowframebreaks]
+    \frametitle{Экскурс в историю}
+    \begin{description}[3500 лет до Н.~Э.]
+        \item[3500 лет до Н.~Э.] Письменность шумеров (потыкать КК)
+        \item[...] На самом деле очень много чего ещё
+        \item[XI век] АА
+    \end{description}
+    % \framebreak
+    % Основные особенности:
+    % \begin{itemize}
+    %     \item Использование языка разметки текстового файла, не WYSIWYG~(What You See Is What You Get) система;
+    %     \item Разделение содержания и оформления;
+    %     \item Мощная система перекрёстных ссылок;
+    %     \item \enquote{Нативная} поддержка математических формул;
+    %     \item Переносимость и воспроизводимость.
+    % \end{itemize}
+\end{frame}
+
+
+\end{document}