The first edition of the Preferred Check-list of Sabah Trees replaces North Borneo Forest Record No. 6 "Check-list of the Forest Flora of North Borneo" by G.H.S. Wood and J. Agama, published in 1956. This pocket checklist is the third update incorporating new information gathered since the publication of the second edition. In this revised edition, the nomenclature has been updated and comments by users for improvement of this booklet have been included.