Catalogue of Republic of Estonian postage stamps and postal stationery composed by Mart Aru includes all Estonian postage stamps and postal stationery from 1981 and is a irreplaceable handbook to all of the collectors. The catalogue that came to sale starting 23. November 2014 is 11th edition of the series starting from 1995. The overview of previous editions is available on viki.filateelia.ee page (in Estonian).
The topic in philatelic forum about new catalogue is the place where it is possible to post all the opinions and comments about the new catalogue, so they would be helpful for other catalogue users and composer while putting together the next edition of the catalogue.