diff --git a/doc/LectureNotes/figures/nn2.pdf b/doc/LectureNotes/figures/nn2.pdf new file mode 100644 index 000000000..7b62d8ff7 Binary files /dev/null and b/doc/LectureNotes/figures/nn2.pdf differ diff --git a/doc/LectureNotes/figures/nn2.png b/doc/LectureNotes/figures/nn2.png new file mode 100644 index 000000000..c402d795b Binary files /dev/null and b/doc/LectureNotes/figures/nn2.png differ diff --git a/doc/LectureNotes/figures/simplenn3.pdf b/doc/LectureNotes/figures/simplenn3.pdf new file mode 100644 index 000000000..c27014f4a Binary files /dev/null and b/doc/LectureNotes/figures/simplenn3.pdf differ diff --git a/doc/LectureNotes/figures/structure.pdf b/doc/LectureNotes/figures/structure.pdf new file mode 100644 index 000000000..d21e6d3d9 Binary files /dev/null and b/doc/LectureNotes/figures/structure.pdf differ diff --git a/doc/LectureNotes/figures/structure.png b/doc/LectureNotes/figures/structure.png new file mode 100644 index 000000000..bf82679e3 Binary files /dev/null and b/doc/LectureNotes/figures/structure.png differ