diff --git a/lec08_base_structures.pdf b/lec08_base_structures.pdf new file mode 100644 index 0000000..bffba6d Binary files /dev/null and b/lec08_base_structures.pdf differ diff --git a/lec09_tree.pdf b/lec09_tree.pdf new file mode 100644 index 0000000..ff69b47 Binary files /dev/null and b/lec09_tree.pdf differ diff --git a/lec11_docker.pdf b/lec11_docker.pdf new file mode 100644 index 0000000..8f2aa7f Binary files /dev/null and b/lec11_docker.pdf differ