Jacek Konieczny has written at least 7 books. Their most popular book is Dlaczego śpimy. Odkrywanie potęgi snu i marzeń sennych with 2 saves with an average rating of 5⭐.
2017 • 2 Readers • 389 pages • 5
2020 • 1 Reader • 272 pages
2018 • 1 Reader • 420 pages • 4
2018 • 1 Reader • 400 pages
2019 • 1 Reader • 520 pages • 2
1996 • 1 Reader • 413 pages • 3
2003 • 368 pages