http://book.klll.cc/ebooks/subject/7958.opds 2025-08-03T06:52:51Z Books about Mental efficiency (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-03T06:52:51Z https://book.klll.cc/ebooks/subject/7958.opds?sort_order=title Sort Alphabetically by Title 2025-08-03T06:52:51Z https://book.klll.cc/ebooks/subject/7958.opds?sort_order=release_date Sort by Release Date 2025-08-03T06:52:51Z https://book.klll.cc/ebooks/23347.opds Mental Efficiency, and Other Hints to Men and Women Arnold Bennett 2025-08-03T06:52:51Z https://book.klll.cc/ebooks/76395.opds Le culte de l'incompétence (French) Émile Faguet 2025-08-03T06:52:51Z https://book.klll.cc/ebooks/27368.opds The cult of incompetence Émile Faguet 2025-08-03T06:52:51Z https://book.klll.cc/ebooks/72419.opds A kontárság kultusza (Hungarian) Émile Faguet