I read Moby Dick. It was way too long. So I decided to list all the chapters that I found necessary to the plot and leave out all the rest. Chapters inside parenthesis were those I liked but did not think absolutely necessary to the plot. They can be read or not read at your own discretion. And now for your reading pleasure, a list of all the important chapters:
II, III, IV, (V), X. XII, (XIII), XV, XVI, (XVII), XVIII, XIX, XXI, XXV, XXVI, XXVII, XXIX, XXX, XXXI, (XXXII), XXXIV, XXXVI, XXXVIII, XXXIX, XL, XLI, XLIII, (XLIV), XLVII, XLVIII, XLIX, (LI), LII, LIII, (LV), (LVI), (LVII), LVIII, LIX, LX, LXI, LXII, LXIV, LXVI, LXVII, LXVIII, LXX, LXXI, LXXII, LXXIII, LXXVII, LXXVIII, LXXXI, LXXXIV, LXXXV, LXXXVII, LXXXIX, XCI, XCII, XCIII, (XCVI), (XCVII), XCIX, C, CVI, CVIII, CIX, CX, CXIII, CXV, CXVI, CXVII, CXVIII, CXIX, (CXX), (CXXI), (CXXII), CXXIII, CXXIV, CXXV, CXXVI, CXXVII, CXXVIII, CXXIX, CXXX, CXXXI, CXXXII, CXXXIII, CXXXIV, CXXXV, epilogue
Of a possible 135 chapters this list discards 45, or one third of them. Happy reading!