Jacek Konieczny has written at least 8 books. Their most popular book is Dlaczego śpimy. Odkrywanie potęgi snu i marzeń sennych with 4 saves with an average rating of 5⭐.
2017 • 4 Readers • 389 pages • 5
1996 • 2 Readers • 413 pages • 2.5
2020 • 1 Reader • 272 pages
2018 • 1 Reader • 400 pages
#1 of 3 in Sheets
2018 • 1 Reader • 240 pages
2013 • 1 Reader • 80 pages
2003 • 368 pages