Here are some condensed rule books for board games I like, formatted as Pocketmod to make eight-page mini-booklets. You can find assembly instructions (one cut and several folds) here.
Alternatively, if text works for you:
Everything here is written by RogerBW and is released cc-by-sa-nc. If you want the LibreOffice source to use the text elsewhere, get in touch.
Preview links show the text without rearrangement or rotation, for convenient use on a screen.