sarah frier is the author. thank you for being with us. >> guest: thank you for having me. >> you're watching boost on c-span2. -- booktv on c-span2. the latest nonfiction books and authors. booktv on c-span2 created be america's cable television companies, today brought to you by these television companies who provide boost to viewers -- booktv to viewer as a public service. >> here's a look at some books being published this week. in prey, there's been an increase in sexual assault in europe due to immigration. georgetown university law professor and form rear serve police every rosa brooks offers suggestions on police rom in tangled up in blue and 34 walk any combat boots, james paterson retired first sergeant and which is mooney we recount stories stf dom combat veterans and being-ed nicole and a report on emerging cyber weapons and this is how the told me the world ends, david stewart recalls george washington's life, and in unmasked, a credit school look at antifa and the portland, oregon, demonstrations.

. >>> coming up, air friers, you know they have grown in popularity, but did you know there are somehould not be using an air fryer for if you want to cook some stuff up. mi >>> the national retail federation predicts people will spend $5 billion less on valentine's day this year than last year. on average, consumers are expected to spend about $165 per person. a separate survey from lending tree found nearly 40% planned to skip celebrating all together. they want the save money. 10% of that group has not skipped celebrating before this year. >>> a lot of us have been cooking more at home this past year. for some, that may have meant getting an air frier, but there are some things you shouldn't use the appliance for. 7 on your side's michael finney joins us now to tell us more about that. michael? >> hey, kristen, air friars have definitely changed the wayway we cook, but consumer reports cook pros say there are some foods that are better off not cooked in an air frier. you can make a multitude of food and desserts in an air fryer, and most veggies that you would usually oven roast c

. ♪ ♪ ♪ >> the new book is called no filter and it is by sarah frier. >> about a decade ago is when instagramtarted. it has transformed our lives and it was guarded by these two men, kevin and mike, who had gone to stanford and tried a lot of tech knowledge accompanies -- a lot of technology companies come at this time there had just been iphone's and they had the ability to take a camera with them wherever they went. and instagram was really the first that captured the idea that the internet was something that could come with you and that you could incorporate social media into your life whether you were going to a restaurant or a wedding, when you are out and about. >> how many users are and instagram today? >> more than 1 billion. although we haven't gotten an updated number is 2018 due to internal corporate,. >> what was the goal that they had, what were they trying to do differently? >> they wanted to build something very simple. the first attempt was overly complex and it allowed telling your friends where you are going to be, uploading a photo, you would have to e-mail it, it was very

. >> yeah, using my air frier. that was a big step. we were living out of a suitcase. just to go home and be able to do some laundry and pick some fresh clothes out of the closet to wear. >> my wife cooked for me both days i've been home. that was a treat. being able to eat with regular silverware. >> my wife knows how to do everything around the house. i don't know how to work everything. i don't know how to do laundry. i got a lot of dishes already. i think i'm learning that i'm not very useful. >> things are piling up for bernsy. last night's blowout win over the pistons. golden state would be the eighth steed in the west if the play-offs started today. can you imagine where the warriors would be with a healthy klay thompson? reporter klay made his return to the broadcast last night and even handled the postgame interview with steph. you can tell klay really isn't into numbers, especially when it comes to figuring out how many steph needs to break the all-time record. >> how much longer until you break the three-point record? >> i mean, you're in the booth right now

business journalist sara frier is the author of "snow filter. "when was instagram start evidence and by whom. >> guest: it's crazy to become out decade ago is when instagram was start expect tns