This is a book of blueprints for display things. It has blueprints for displaying all your items in logistics (or on a circuit network), for displaying your power levels (accumulator levels), displaying the amount of oil products you have, and it also includes some blueprints for making "chasing lights" with four colored lights that shift to the left or the right.

Text Item Display

This is the best blueprint in the book, and is the upper left of the image. It will display the amount of items in your logistics system by displaying the name of the item with the amount you have in logistics below (up to 999,999), and then switch between all items in the game every 5 seconds. Based upon DaveMcW's display ( https://forums.factorio.com/viewtopic.php?f=193&t=19825&start=60#p282391 ), I developed a 5x5 text display that supports 63 characters, allowing text, math and some punctuation to be displayed. I'm using that to display the name of the item and display the quantity below on a larger display (with pixels doubled). There are two version, one that just displays the quantities for about 5 seconds, and one that does an 'animation' counting up or down to the next value, but switches about every 8 seconds. If you want to connect it to a circuit network instead of logistics (or connect it to both at the same time, to get fluid levels in addition to logistics), remove the roboport (if you don't want it connected to logistics), and connect a red wire to the power pole just above where the roboport was). There are two filter inserters that are set to filter the item currently being displayed (so they show the item if you have alt pressed). There is a normal inserter point to a combinator on the lower right. Turning that combinator on will stop the item cycling of the display. You can use the 'Z' signal on that combinator to set the displayed item by setting it from 1 to 209 to choose the item to display.

Item Display Board

This is a large board made up on groups of 10 wide and 4 high lights, each column with a requester chest, as shown in the right of the image. Each column represents the amount of an item in your logistics (or circuit) network. Each row is a row on one of the four crafting tabs in the game, with the four big columns being each of the big crafting tabs. There are two versions of this board. One has lights for 5 (red), 50 (yellow), 500 (green), and 5000 (cyan) items, the other has lights for 10, 20, 30, and 40 stacks of items (this version I designed for reading the contents of a train, and therefore doesn't come connected to the logistics network, to connect it, just connect one of the red wires to a roboport).

Four and Five digit displays

There are 3 blueprints for four and five digit displays. These are intended to displaying the amount of a single item, or perhaps the level of fluid in a tank. The come with a requester chest, which you can remove. To use, remove the requester chest, but connect a red wire to the combinator that the chest was connected to, and change to input on that combinator to the item or fluid you want to display. One of the two five digit displays is designed to not display leading zeros in the number.