Eggs and Ham by Dr. Seuss comes close, averaging 5.7 words per sentence and 1.02 syllables per word, with a grade level of −1.3. (Most of the 50 used words are monosyllabic; "anywhere", which occurs eight times, is the only exception.) Applications Leah Borovoi from the Infinity Labs has calculated the Flesch score for the seven Harry Potter books that were located at the Glozman Website. The average Flesch score for Harry Potter was 72.83, with the highest score (81.32) for Harry Potter and the Philosopher's Stone and the lowest score (65.88) for Harry Potter and the Order of the Phoenix. Readability of newspaper content (by topic and by newspaper) has been measured on a big-data scale, showing strong topic-readability correlations. Leah Borovoi also calculated the Flesch score for 2,000 articles about people on Wikipedia. According to this study, the most readable articles are about sportspeople and entertainers (such as actors and actresses), while the least readable articles are about scientists and philosophers. The least readable scientists are economists (Flesch score = 41.70), psychologists (42.25), chemists (42.81), and mathematicians (43.35). According to the Flesch score, the most readable Wikipedia articles about people are the articles about sports figures. For example: basketball player Larry Bird (72.60), former Olympic Skater Bonnie Blair (70.43) and basketball player Kareem Abdul-Jabbar (70.11). Limitations As readability formulas were developed for school books, they demonstrate weaknesses compared to directly testing usability with typical readers. They neglect between-reader differences and effects of content, layout and retrieval aids. For example, the pangram "Cwm fjord-bank glyphs vext quiz." has a reading ease score of 100 and grade level score of 0.52 despite its obscure words. See also Readability References Further reading External links readability.mackayst.com, lists Flesch–Kincaid scores of Project Gutenberg books Readability tests 1975 introductions de:Lesbarkeitsindex#Flesch Reading Ease