diff --git a/ch05.asciidoc b/ch05.asciidoc
index f944b810..1cdf1f46 100644
--- a/ch05.asciidoc
+++ b/ch05.asciidoc
@@ -95,7 +95,7 @@ These standards may change or may become obsolete by future developments, but fo
 
 The standards have been adopted by a broad range of software and hardware bitcoin wallets, making all these wallets interoperable. A user can export a mnemonic generated on one of these wallets and import it in another wallet, recovering all transactions, keys, and addresses. 
 
-Some example of software wallets supporting these standards include (listed alphabetically) Breadwallet, Copay, Multibit HD, and Mycelium. Examples of hardware wallets supporting these standards include (listed alphabetically) Keepkey, Ledger, and Trezor. 
+((("hardware wallets")))((("hardware wallets", see="also wallets")))Some example of software wallets supporting these standards include (listed alphabetically) Breadwallet, Copay, Multibit HD, and Mycelium. Examples of hardware wallets supporting these standards include (listed alphabetically) Keepkey, Ledger, and Trezor. 
 
 The following sections examine each of these technologies in detail. 
 
@@ -108,7 +108,7 @@ If you are implementing a bitcoin wallet, it should be built as a hierarchical d
 
 ((("wallets", "using bitcoin wallets")))In <<user-stories>> we introduced Gabriel, an enterprising young teenager in Rio de Janeiro, who is running a simple web store that sells bitcoin-branded t-shirts, coffee mugs, and stickers. 
 
-((("Trezor bitcoin hardware wallet", seealso="wallets")))Gabriel uses a Trezor bitcoin hardware wallet (<<a_trezor_device>>), to securely manage his bitcoin. The Trezor is a simple USB device with two buttons that stores keys (in the form of an HD wallet) and signs transactions. Trezor wallets implement all the industry standards discussed in this chapter, so Gabriel is not reliant on any proprietary technology or single vendor solution. 
+((("Trezor bitcoin hardware wallet", seealso="wallets")))((("wallets", "types of", "hardware wallets")))Gabriel uses a Trezor bitcoin hardware wallet (<<a_trezor_device>>), to securely manage his bitcoin. The Trezor is a simple USB device with two buttons that stores keys (in the form of an HD wallet) and signs transactions. Trezor wallets implement all the industry standards discussed in this chapter, so Gabriel is not reliant on any proprietary technology or single vendor solution. 
 
 [[a_trezor_device]]
 .A Trezor device: a bitcoin HD wallet in hardware