diff --git a/2024/slides/l12-decoding.pdf b/2024/slides/l12-decoding.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..7df056cb2f188995697cf09c3e66879a0ba7105e
Binary files /dev/null and b/2024/slides/l12-decoding.pdf differ