The Trekker’s Guide is fairly exhaustive -- I can often find pieces in it that I can’t find in my other price guide. This book covers all series of Star Trek. This is the 2nd Edition which has a section at the end containing all the items added since the 1st Edition. This edition was published in 1999, and seems not to have been updated since, so there are more recent collectibles not included in this guide. I enjoy having this as a backup for Star Trek The Collectibles.