China
Wang Lianying - Pictorial Recond of Chinese Tree Peony Varieties -1997 · 213 pages · 400 color photos · chinese · fine
Xiao, Baiging -Peonies of Caozhou (Caozhou Mudan) - 1992 · 233 pages · 605 (!) excellent color photos 30x22 · chinese · fine
Xin, Jinguang - Peony in Luoyang -1986 · 64 pages · 121 excellent color photographs · 29x19 · english/ chinese · fine
Liang Zu Hong - Luoyang Peony -1988 · 94 pages ·172 excellent color photographs of chinese tree peonies ·chinese · fine

France
Riviere, Michael - Le Monde fabuleux des Piviones - 1992 · 192 pages · 138 color photos, 25 aquarelles · 24x25 · french · fine

Germany
Frank, Reinhilde - Päonien - Pfingstrosen - 1889· 152 pages · 30 black and white pictures, 45 color photographs · 21x16 · german
Good, Walter - Schweizer Staudengaerten, Sonderheft 15/16 - 1991· 9 black and white, 16 color photographs · 21x15 ·german
Riviere, Michael - Prachtvolle Strauchpaeonien - 1996 · 192 pages · 138 color photos, 25 aquarelles ·24x25 · german edition · fine
Westrich, Josh and Sir Smithers, Peter - Strauchpaeonien - 1990 · 120 pages · excellent large color photographs · antiquarian, very rare · fine

Grece
Stern, W. T. and Davis, P. H.- Peonies Of Greece - 1984 · 135 pages · 33x24 · many numerous color and black and white illustrations · english · very scare · outstanding

Japan
Ariga - Excellent Flowers of Tree Peonies - 162 (5.5x5.5) color photographs of japanese tree peonies · 18x25 · japanese with german translation
Hashida, Ryoshi - A Book of Tree and Herbaceous Peonies in Modern Japan - 2nd printing 1996 · 255 pages · photos of 306 trees and 83 herbaceous · 23x31

Italy
Tavallini, Susanna - Peonie - EDAGRICOLE - color illustrations - Italian.
Osti, Gian Lupo - Il Libro delle Peonie - ALLEMANDI & C. -1999 · 128 pages · 242 color photos · 31x21 · 152 varities of tree peonies are discribed and illustrated in full color · Italian · very recommended

U.K. - U.S.A.
American Peony Society (APS) - Handbook Of Peony - 5th edition · 1989· 98 pages · 23x15· some figures in black and white · english · recommended
American Peony Society (APS) - The Best Of 75 Years - edited by Kessenich, Greta· 2nd printing · 232 pages· 8 1/2"x11"· english ·recommended
Fearnley J. - Whittingstall - Peonies - 1999 · about 300 pages · co pro ·23x16 · description of about 1300 cultivars ·english
Gratwick, William - Truth Tales and Blatant Lies - Rochester 1981 · 202 pages · 22,5x26 · crazy auto-biographic · english · very rare
Harding, A. - The Peony - 1993 · 145 pages · 26 color photographs · 23x16 · reprint of two books · introduction and supplement by R. G. Klehm · english
Haworth -Booth, Michael -The Moutan or Tree Peony - 1963 · 111 pages · 22,3x14 · some figures in black and white · english · antiquarian · very rare
Kessenich, Greta - The American Hybrid Peony - 208 pages · 130 nice photographs, 32 species ·· 6 5/8"x9 1/4" · english · very good
Kessenich, Greta - The American Tree Peony - 1988· 40 pages · 63 nice color photographs · only american trees · 24x21 · english · very good
Osti, G.Lupo. - The Book Of Tree Peonies - 1999 · 128 pages· 242 color photos · 31x21 · 152 varities of tree peonies are discribed and illustrated in full color · english · very recommended
Page, M. - Peonies: Gardeners Guide To Growing - 1997 · 160 pages · numerous (75) color photographs, 6 black and white drawings · 26x19 · english ·
Rogers, Allan - Peonies - 1995 ·296 pages · 143 nice color photographs, 11 drawings · 15.5x23 · comprehensive outline of about 1300 cv's · english · very good
Stearn, F.C.- A Study of the Genus Paeonia -1946. ROYAL HORTICOLTURAL SOCIETY, LONDON - 156 pages
Wang Lianying - Chinese Tree Peony -The Peony Association Of China -1998 · 213 pages · 400 color photos · english edition of Pictorial Recond of Chinese Tree Peony Varieties · fine
Wister, John C. - The Peonies - 2nd printing 1995 · 225 pages · 16,5x23 · hard cover edition · english