But now to the book itself: All items (characters, events, items, etc.) are listed in alphabetical order. This key characters of the Marvel universe (at least) is a double-page spread granted (eg Iron Man, Spider-Man, X-Men, etc.), less important characters (eg Zarathos or Maverick) are only a quarter page (or less) " fobbed off ", too" unimportant "characters allowed also may completely left out (the latter will point but probably only die-hard fans notice). Important events in the Marvel universe are usually summarized on a double page, where the emphasis is clearly on events of the last few years, eg annihilation. However, to say that this prioritization is sorely needed in the size and complexity of the Marvel universe and can therefore in this respect, nothing can accuse this book.
Conclusion: This encyclopedia offers beginners a good overview and brings old (Marvel) rabbits, a couple of hours to browse, reminisce, etc. In addition, the book also makes very good on the bookshelf :-)
(Last tip: It is advisable to remove the dust jacket in reading, otherwise it will be drawn while browsing etc. may suffer.)