diff --git a/0x_protocol/README.md b/0x_protocol/README.md
index 9a7da0a..116ca7a 100644
--- a/0x_protocol/README.md
+++ b/0x_protocol/README.md
@@ -2,8 +2,28 @@
 
 <br>
 
+### tl; dr
+
+* 0x request-for-quote (rfq), mev proof + zero slippage trades
+* all communication happens off-chain until settlement, making the system extremely gas efficient for market makers
+* trades are impossible to front-run or sandwich: no mev
+* trades have zero slippage, zero fees (aside from gas), and are settled at a predetermined price
+* highly capital efficient (max trade size = balance of market marker)
+* rfq liquidity is composable
+* off-chain orders, on-chain settlement
+* the `txOrigin` field must be set and enforces that the order can only be filled by the specified address - it is impossible for any other trader or bot to front-run the trade.
+
+
+
+<br>
+
+----
+
 ### resources
 
 <br>
 
+* [matcha.xyz](https://matcha.xyz/)
+* [RFQ orders official guide](https://protocol.0x.org/en/latest/basics/orders.html#rfq-orders)
 * [0xv4 RFQ order guide](https://gist.github.com/lampshade9909/cf16b2aa198e4df8d00702ffd7bf506a)
+* [0x at mev.wtf](https://docs.google.com/presentation/d/1kde_3RPgHJP0vOP8GG92mlA7VtdGdHiGdrEGhFhx-5U/edit#slide=id.g465c39fec5_0_1309)