de Silva Wijeyeratne, G. and Warakagoda, D. (2001). A Checklist of the Birds of Sri Lanka . A Jetwing Publication: Colombo. 16 pages. A4.
A lavishly produced checklist of 24 pages in two colour, illustrated liberally with line drawing by Lester Perera. The checklists contain a map of key birding sites in Sri Lanka, a booklist, a discussion on the uses of a checklist and the nomenclature, taxonomy and the status of birds as used in the checklist. Five columns of tick boxes.

This book combines the design element and strong visual focus of a coffee table book with authoritative text from some of Sri Lanka's leading wildlife writers. The thirteen contributors cover a variety of topics from Leopards, Elephants, smaller mammals, birds, butterflies and dragonflies to plant life and conservation.The book will be a useful introduction not only to Yala but also to the wildlife of the other parks and reserves in Sri Lanka's dry lowlands.

The photography is by Gehan de Silva Wijeyeratne, one of Sri Lanka's most prolific nature photographers and writers. Yala, Leopards & other Wildlife. 2004. Compiled & Edited by Gehan de Silva Wijeyeratne. Photography by Gehan de Silva Wijeyeratne. Design by Chandrika Maelge and Layout by Copyline. 232 pages. 

The book, is probably the first in the "Wildlife Art Book" genre, by a Sri Lankan publisher. The book showcases the work of Lester Perera, arguably the best known resident Sri Lankan wildlife artist. The art, reflects Lester's style of underpinning his paintings on field sketches and rarely relying on photographs or museum specimens. 
His art also captures the spirit of the place, whilst preserving an authenticity of the identity of the birds. Over the years, Lester has developed a more relaxed style towards the backgrounds of the subjects and has developed a more painterly attitude, freeing himself from the pre-occupation to detail which marked his early years. The book is complemented with a series of articles by wildlife populariser Gehan de Silva Wijeyeratne. Shorebirds, an artist in the field. 2004. Text by Gehan de Silva Wijeyeratne. Art by Lester Perera. Design by Chandrika Maelge and Layout by Copyline. 48 pages.

de Silva Wijeyeratne, G. (2006). 1st Ed. Gehan' Photo Guide: Wildlife of the Dry Lowlands. A photographic guide to the commoner animals and plants of the dry lowlands. Published by Jetwing Eco Holidays. Colombo. 110 pages of colour plates. ISBN 955-1079-01-9
A Pictorial Guide to the commoner plants and animals of the dry lowlands. Names and introductory text in English, Sinhala, French and German.

Bedjanic. M, Conniff. K & deSilva Wijeyeratne. G, (2007). Eco Holidays, Colombo. 248 pages. ISBN 978-955-1079-15-4. 
A 248 page, A6 sized book, with colour plates for 91 of the 118 species of Dragonflies in Sri lanka. Attractively designed and easy to use, it is the first of its kind in Sri Lanka. Easy to read english makes it ideal for the novice dragonfly watcher.

The book has been split into nine sections to enable easy download.

de Silva Wijeyeratne, G. and D. A. Warakagoda. (2001). A Checklist of the Birds of the Yala Protected Area. Jetwing, Colombo. 16 pages. A4.
A lavishly produced checklist of 16 pages in two colour, illustrated liberally with line drawing by Lester Perera. The checklists contain a booklist, a discussion on the uses of a checklist and the nomenclature, taxonomy and the status of birds as used in the checklist. Five columns of tick boxes.