The Ultimate Moshling Collector's Guide is a new book. It has the original moshlings and the new ones (featured in the Second Sticker Album) like Jessie the Ginger McMoshling, Leo the Abominable Snowling, and Woolly the Titchy-Tusked Mammoth.

This book gives you 2 codes. The codes are EPHEMERAL which gets you a poster of the book cover (this was announced on the Daily Growl by Nickfart) and HOBBIDIDANCE which gives you the Radiant Roxy Rose Seed which when planted with two other seeds gets you Roxy. It makes a mistake where for some Moshling it doesn't say how rare it is. Another mistake is they put Woolly for an Ultra Rare Moshling. There is another mistake where Bobbi SingSong was spelt Bobby SingSong in the index but on his page it said Bobbi SingSong.