diff --git a/resources/flash_cards/OO Design.apkg b/resources/flash_cards/OO Design.apkg new file mode 100644 index 0000000..576466b Binary files /dev/null and b/resources/flash_cards/OO Design.apkg differ diff --git a/resources/flash_cards/System Design Exercises.apkg b/resources/flash_cards/System Design Exercises.apkg new file mode 100644 index 0000000..67a2feb Binary files /dev/null and b/resources/flash_cards/System Design Exercises.apkg differ diff --git a/resources/flash_cards/System Design.apkg b/resources/flash_cards/System Design.apkg new file mode 100644 index 0000000..dec0111 Binary files /dev/null and b/resources/flash_cards/System Design.apkg differ